Home / 1,116,272,642.96-1,540,441,210.56-621,235,220.24

Finding the Fourth Proportional to 1,116,272,642.96, 1,540,441,210.56 and 621,235,220.24

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Solution

The fourth proportional to 1,116,272,642.96, 1,540,441,210.56 and 621,235,220.24 is: 857,296,235.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,272,642.96 : 1,540,441,210.56 = 621,235,220.24 : x
  2. Step 2: Convert to fraction form
    1,116,272,642.96/1,540,441,210.56 = 621,235,220.24/x
  3. Step 3: Cross multiply
    1,116,272,642.96x = 1,540,441,210.56 × 621,235,220.24
  4. Step 4: Simplify right side
    1,116,272,642.96x = 956,976,334,701,311,616
  5. Step 5: Solve for x
    x = 956,976,334,701,311,616/1,116,272,642.96
  6. Step 6: Final answer
    x = 857,296,235.59

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Half scale
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Double scale
Find fourth proportional to 1,116,272,643.96, 1,540,441,211.94 and 621,235,221.24
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.