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Finding the Fourth Proportional to 778,539,089.71, 1,167,879,592.84 and 253,773,497.27

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Solution

The fourth proportional to 778,539,089.71, 1,167,879,592.84 and 253,773,497.27 is: 380,683,375.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,539,089.71 : 1,167,879,592.84 = 253,773,497.27 : x
  2. Step 2: Convert to fraction form
    778,539,089.71/1,167,879,592.84 = 253,773,497.27/x
  3. Step 3: Cross multiply
    778,539,089.71x = 1,167,879,592.84 × 253,773,497.27
  4. Step 4: Simplify right side
    778,539,089.71x = 296,376,888,665,270,464
  5. Step 5: Solve for x
    x = 296,376,888,665,270,464/778,539,089.71
  6. Step 6: Final answer
    x = 380,683,375.55

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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.