Home / 1,214,788,319.41-1,676,399,534.40-657,858,621.73

Finding the Fourth Proportional to 1,214,788,319.41, 1,676,399,534.40 and 657,858,621.73

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Solution

The fourth proportional to 1,214,788,319.41, 1,676,399,534.40 and 657,858,621.73 is: 907,840,378.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,788,319.41 : 1,676,399,534.40 = 657,858,621.73 : x
  2. Step 2: Convert to fraction form
    1,214,788,319.41/1,676,399,534.40 = 657,858,621.73/x
  3. Step 3: Cross multiply
    1,214,788,319.41x = 1,676,399,534.40 × 657,858,621.73
  4. Step 4: Simplify right side
    1,214,788,319.41x = 1,102,833,887,169,197,824
  5. Step 5: Solve for x
    x = 1,102,833,887,169,197,824/1,214,788,319.41
  6. Step 6: Final answer
    x = 907,840,378.07

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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.