Home / 131,693,547.20-181,748,255.40-72,974,631.12

Finding the Fourth Proportional to 131,693,547.20, 181,748,255.40 and 72,974,631.12

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Solution

The fourth proportional to 131,693,547.20, 181,748,255.40 and 72,974,631.12 is: 100,711,175.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,693,547.20 : 181,748,255.40 = 72,974,631.12 : x
  2. Step 2: Convert to fraction form
    131,693,547.20/181,748,255.40 = 72,974,631.12/x
  3. Step 3: Cross multiply
    131,693,547.20x = 181,748,255.40 × 72,974,631.12
  4. Step 4: Simplify right side
    131,693,547.20x = 13,263,011,894,518,550
  5. Step 5: Solve for x
    x = 13,263,011,894,518,550/131,693,547.20
  6. Step 6: Final answer
    x = 100,711,175.12

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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.