Home / 1,187,931,225.71-1,781,964,934.01-314,509,898.21

Finding the Fourth Proportional to 1,187,931,225.71, 1,781,964,934.01 and 314,509,898.21

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Solution

The fourth proportional to 1,187,931,225.71, 1,781,964,934.01 and 314,509,898.21 is: 471,782,875.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,931,225.71 : 1,781,964,934.01 = 314,509,898.21 : x
  2. Step 2: Convert to fraction form
    1,187,931,225.71/1,781,964,934.01 = 314,509,898.21/x
  3. Step 3: Cross multiply
    1,187,931,225.71x = 1,781,964,934.01 × 314,509,898.21
  4. Step 4: Simplify right side
    1,187,931,225.71x = 560,445,610,011,382,144
  5. Step 5: Solve for x
    x = 560,445,610,011,382,144/1,187,931,225.71
  6. Step 6: Final answer
    x = 471,782,875.88

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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.