Home / 72,423,139.10-108,634,708.65-34,159,387.10

Finding the Fourth Proportional to 72,423,139.10, 108,634,708.65 and 34,159,387.10

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Solution

The fourth proportional to 72,423,139.10, 108,634,708.65 and 34,159,387.10 is: 51,239,080.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,423,139.10 : 108,634,708.65 = 34,159,387.10 : x
  2. Step 2: Convert to fraction form
    72,423,139.10/108,634,708.65 = 34,159,387.10/x
  3. Step 3: Cross multiply
    72,423,139.10x = 108,634,708.65 × 34,159,387.10
  4. Step 4: Simplify right side
    72,423,139.10x = 3,710,895,065,271,069
  5. Step 5: Solve for x
    x = 3,710,895,065,271,069/72,423,139.10
  6. Step 6: Final answer
    x = 51,239,080.65

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Double scale
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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.