Home / 131,693,547.20-181,748,255.39-72,974,631.11

Finding the Fourth Proportional to 131,693,547.20, 181,748,255.39 and 72,974,631.11

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Solution

The fourth proportional to 131,693,547.20, 181,748,255.39 and 72,974,631.11 is: 100,711,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,693,547.20 : 181,748,255.39 = 72,974,631.11 : x
  2. Step 2: Convert to fraction form
    131,693,547.20/181,748,255.39 = 72,974,631.11/x
  3. Step 3: Cross multiply
    131,693,547.20x = 181,748,255.39 × 72,974,631.11
  4. Step 4: Simplify right side
    131,693,547.20x = 13,263,011,891,971,318
  5. Step 5: Solve for x
    x = 13,263,011,891,971,318/131,693,547.20
  6. Step 6: Final answer
    x = 100,711,175.10

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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.