Home / 689,931,467.10-1,034,897,200.65-414,432,452.70

Finding the Fourth Proportional to 689,931,467.10, 1,034,897,200.65 and 414,432,452.70

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Solution

The fourth proportional to 689,931,467.10, 1,034,897,200.65 and 414,432,452.70 is: 621,648,679.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,931,467.10 : 1,034,897,200.65 = 414,432,452.70 : x
  2. Step 2: Convert to fraction form
    689,931,467.10/1,034,897,200.65 = 414,432,452.70/x
  3. Step 3: Cross multiply
    689,931,467.10x = 1,034,897,200.65 × 414,432,452.70
  4. Step 4: Simplify right side
    689,931,467.10x = 428,894,985,157,743,488
  5. Step 5: Solve for x
    x = 428,894,985,157,743,488/689,931,467.10
  6. Step 6: Final answer
    x = 621,648,679.05

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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.