Home / 508,727,981.80-763,147,959.90-185,681,837.80

Finding the Fourth Proportional to 508,727,981.80, 763,147,959.90 and 185,681,837.80

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Solution

The fourth proportional to 508,727,981.80, 763,147,959.90 and 185,681,837.80 is: 278,543,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,727,981.80 : 763,147,959.90 = 185,681,837.80 : x
  2. Step 2: Convert to fraction form
    508,727,981.80/763,147,959.90 = 185,681,837.80/x
  3. Step 3: Cross multiply
    508,727,981.80x = 763,147,959.90 × 185,681,837.80
  4. Step 4: Simplify right side
    508,727,981.80x = 141,702,715,707,552,704
  5. Step 5: Solve for x
    x = 141,702,715,707,552,704/508,727,981.80
  6. Step 6: Final answer
    x = 278,543,191.60

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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.