Home / 425,909,636.20-638,423,555.10-231,410,103.40

Finding the Fourth Proportional to 425,909,636.20, 638,423,555.10 and 231,410,103.40

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Solution

The fourth proportional to 425,909,636.20, 638,423,555.10 and 231,410,103.40 is: 346,875,600.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,909,636.20 : 638,423,555.10 = 231,410,103.40 : x
  2. Step 2: Convert to fraction form
    425,909,636.20/638,423,555.10 = 231,410,103.40/x
  3. Step 3: Cross multiply
    425,909,636.20x = 638,423,555.10 × 231,410,103.40
  4. Step 4: Simplify right side
    425,909,636.20x = 147,737,660,898,686,592
  5. Step 5: Solve for x
    x = 147,737,660,898,686,592/425,909,636.20
  6. Step 6: Final answer
    x = 346,875,600.70

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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.