Home / 1,159,888,908.35-1,739,833,362.53-393,984,012.35

Finding the Fourth Proportional to 1,159,888,908.35, 1,739,833,362.53 and 393,984,012.35

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Solution

The fourth proportional to 1,159,888,908.35, 1,739,833,362.53 and 393,984,012.35 is: 590,976,018.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,888,908.35 : 1,739,833,362.53 = 393,984,012.35 : x
  2. Step 2: Convert to fraction form
    1,159,888,908.35/1,739,833,362.53 = 393,984,012.35/x
  3. Step 3: Cross multiply
    1,159,888,908.35x = 1,739,833,362.53 × 393,984,012.35
  4. Step 4: Simplify right side
    1,159,888,908.35x = 685,466,528,989,961,600
  5. Step 5: Solve for x
    x = 685,466,528,989,961,600/1,159,888,908.35
  6. Step 6: Final answer
    x = 590,976,018.53

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Double scale
Find fourth proportional to 1,159,888,909.35, 1,739,833,364.03 and 393,984,013.35
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.