Home / 813,730,864.50-1,220,597,521.47-376,793,458.74

Finding the Fourth Proportional to 813,730,864.50, 1,220,597,521.47 and 376,793,458.74

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Solution

The fourth proportional to 813,730,864.50, 1,220,597,521.47 and 376,793,458.74 is: 565,190,755.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,730,864.50 : 1,220,597,521.47 = 376,793,458.74 : x
  2. Step 2: Convert to fraction form
    813,730,864.50/1,220,597,521.47 = 376,793,458.74/x
  3. Step 3: Cross multiply
    813,730,864.50x = 1,220,597,521.47 × 376,793,458.74
  4. Step 4: Simplify right side
    813,730,864.50x = 459,913,161,844,152,704
  5. Step 5: Solve for x
    x = 459,913,161,844,152,704/813,730,864.50
  6. Step 6: Final answer
    x = 565,190,755.21

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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.