Home / 689,931,453.60-1,034,897,180.40-414,432,439.20

Finding the Fourth Proportional to 689,931,453.60, 1,034,897,180.40 and 414,432,439.20

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Solution

The fourth proportional to 689,931,453.60, 1,034,897,180.40 and 414,432,439.20 is: 621,648,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,931,453.60 : 1,034,897,180.40 = 414,432,439.20 : x
  2. Step 2: Convert to fraction form
    689,931,453.60/1,034,897,180.40 = 414,432,439.20/x
  3. Step 3: Cross multiply
    689,931,453.60x = 1,034,897,180.40 × 414,432,439.20
  4. Step 4: Simplify right side
    689,931,453.60x = 428,894,962,794,374,400
  5. Step 5: Solve for x
    x = 428,894,962,794,374,400/689,931,453.60
  6. Step 6: Final answer
    x = 621,648,658.80

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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.