Home / 21,428,332.34-29,570,595.68-12,608,354.88

Finding the Fourth Proportional to 21,428,332.34, 29,570,595.68 and 12,608,354.88

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Solution

The fourth proportional to 21,428,332.34, 29,570,595.68 and 12,608,354.88 is: 17,399,233.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,428,332.34 : 29,570,595.68 = 12,608,354.88 : x
  2. Step 2: Convert to fraction form
    21,428,332.34/29,570,595.68 = 12,608,354.88/x
  3. Step 3: Cross multiply
    21,428,332.34x = 29,570,595.68 × 12,608,354.88
  4. Step 4: Simplify right side
    21,428,332.34x = 372,836,564,283,393.19
  5. Step 5: Solve for x
    x = 372,836,564,283,393.19/21,428,332.34
  6. Step 6: Final answer
    x = 17,399,233.80

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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.