Home / 423,155,512.80-634,733,269.20-392,544,511.20

Finding the Fourth Proportional to 423,155,512.80, 634,733,269.20 and 392,544,511.20

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Solution

The fourth proportional to 423,155,512.80, 634,733,269.20 and 392,544,511.20 is: 588,816,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,155,512.80 : 634,733,269.20 = 392,544,511.20 : x
  2. Step 2: Convert to fraction form
    423,155,512.80/634,733,269.20 = 392,544,511.20/x
  3. Step 3: Cross multiply
    423,155,512.80x = 634,733,269.20 × 392,544,511.20
  4. Step 4: Simplify right side
    423,155,512.80x = 249,161,060,900,492,032
  5. Step 5: Solve for x
    x = 249,161,060,900,492,032/423,155,512.80
  6. Step 6: Final answer
    x = 588,816,766.80

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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.