Home / 459,323,672.40-688,985,508.60-419,146,732.80

Finding the Fourth Proportional to 459,323,672.40, 688,985,508.60 and 419,146,732.80

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Solution

The fourth proportional to 459,323,672.40, 688,985,508.60 and 419,146,732.80 is: 628,720,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,323,672.40 : 688,985,508.60 = 419,146,732.80 : x
  2. Step 2: Convert to fraction form
    459,323,672.40/688,985,508.60 = 419,146,732.80/x
  3. Step 3: Cross multiply
    459,323,672.40x = 688,985,508.60 × 419,146,732.80
  4. Step 4: Simplify right side
    459,323,672.40x = 288,786,024,876,236,352
  5. Step 5: Solve for x
    x = 288,786,024,876,236,352/459,323,672.40
  6. Step 6: Final answer
    x = 628,720,099.20

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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.