Home / 442,867,807.60-664,301,711.40-440,316,890.80

Finding the Fourth Proportional to 442,867,807.60, 664,301,711.40 and 440,316,890.80

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Solution

The fourth proportional to 442,867,807.60, 664,301,711.40 and 440,316,890.80 is: 660,475,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,867,807.60 : 664,301,711.40 = 440,316,890.80 : x
  2. Step 2: Convert to fraction form
    442,867,807.60/664,301,711.40 = 440,316,890.80/x
  3. Step 3: Cross multiply
    442,867,807.60x = 664,301,711.40 × 440,316,890.80
  4. Step 4: Simplify right side
    442,867,807.60x = 292,503,264,116,766,912
  5. Step 5: Solve for x
    x = 292,503,264,116,766,912/442,867,807.60
  6. Step 6: Final answer
    x = 660,475,336.20

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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.