Home / 442,867,695.60-664,301,543.40-440,316,778.80

Finding the Fourth Proportional to 442,867,695.60, 664,301,543.40 and 440,316,778.80

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Solution

The fourth proportional to 442,867,695.60, 664,301,543.40 and 440,316,778.80 is: 660,475,168.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,867,695.60 : 664,301,543.40 = 440,316,778.80 : x
  2. Step 2: Convert to fraction form
    442,867,695.60/664,301,543.40 = 440,316,778.80/x
  3. Step 3: Cross multiply
    442,867,695.60x = 664,301,543.40 × 440,316,778.80
  4. Step 4: Simplify right side
    442,867,695.60x = 292,503,115,741,756,416
  5. Step 5: Solve for x
    x = 292,503,115,741,756,416/442,867,695.60
  6. Step 6: Final answer
    x = 660,475,168.20

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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.