Home / 509,475,127.11-764,064,913.86-198,513,382.83

Finding the Fourth Proportional to 509,475,127.11, 764,064,913.86 and 198,513,382.83

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Solution

The fourth proportional to 509,475,127.11, 764,064,913.86 and 198,513,382.83 is: 297,712,494.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,475,127.11 : 764,064,913.86 = 198,513,382.83 : x
  2. Step 2: Convert to fraction form
    509,475,127.11/764,064,913.86 = 198,513,382.83/x
  3. Step 3: Cross multiply
    509,475,127.11x = 764,064,913.86 × 198,513,382.83
  4. Step 4: Simplify right side
    509,475,127.11x = 151,677,110,752,061,152
  5. Step 5: Solve for x
    x = 151,677,110,752,061,152/509,475,127.11
  6. Step 6: Final answer
    x = 297,712,494.06

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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.