Home / 72,891,337.50-100,592,145.27-40,298,389.02

Finding the Fourth Proportional to 72,891,337.50, 100,592,145.27 and 40,298,389.02

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Solution

The fourth proportional to 72,891,337.50, 100,592,145.27 and 40,298,389.02 is: 55,612,937.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,891,337.50 : 100,592,145.27 = 40,298,389.02 : x
  2. Step 2: Convert to fraction form
    72,891,337.50/100,592,145.27 = 40,298,389.02/x
  3. Step 3: Cross multiply
    72,891,337.50x = 100,592,145.27 × 40,298,389.02
  4. Step 4: Simplify right side
    72,891,337.50x = 4,053,701,402,446,813
  5. Step 5: Solve for x
    x = 4,053,701,402,446,813/72,891,337.50
  6. Step 6: Final answer
    x = 55,612,937.58

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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.