Home / 689,931,463.60-1,034,897,195.40-414,432,449.20

Finding the Fourth Proportional to 689,931,463.60, 1,034,897,195.40 and 414,432,449.20

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Solution

The fourth proportional to 689,931,463.60, 1,034,897,195.40 and 414,432,449.20 is: 621,648,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,931,463.60 : 1,034,897,195.40 = 414,432,449.20 : x
  2. Step 2: Convert to fraction form
    689,931,463.60/1,034,897,195.40 = 414,432,449.20/x
  3. Step 3: Cross multiply
    689,931,463.60x = 1,034,897,195.40 × 414,432,449.20
  4. Step 4: Simplify right side
    689,931,463.60x = 428,894,979,359,832,960
  5. Step 5: Solve for x
    x = 428,894,979,359,832,960/689,931,463.60
  6. Step 6: Final answer
    x = 621,648,673.80

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Double scale
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1.5x scale

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.