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Finding the Fourth Proportional to 641,347,870.60, 962,021,805.90 and 549,514,865.80

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Solution

The fourth proportional to 641,347,870.60, 962,021,805.90 and 549,514,865.80 is: 824,272,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,347,870.60 : 962,021,805.90 = 549,514,865.80 : x
  2. Step 2: Convert to fraction form
    641,347,870.60/962,021,805.90 = 549,514,865.80/x
  3. Step 3: Cross multiply
    641,347,870.60x = 962,021,805.90 × 549,514,865.80
  4. Step 4: Simplify right side
    641,347,870.60x = 528,645,283,565,812,096
  5. Step 5: Solve for x
    x = 528,645,283,565,812,096/641,347,870.60
  6. Step 6: Final answer
    x = 824,272,298.70

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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.