Home / 425,413,812.60-638,120,718.90-364,191,809.40

Finding the Fourth Proportional to 425,413,812.60, 638,120,718.90 and 364,191,809.40

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Solution

The fourth proportional to 425,413,812.60, 638,120,718.90 and 364,191,809.40 is: 546,287,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,413,812.60 : 638,120,718.90 = 364,191,809.40 : x
  2. Step 2: Convert to fraction form
    425,413,812.60/638,120,718.90 = 364,191,809.40/x
  3. Step 3: Cross multiply
    425,413,812.60x = 638,120,718.90 × 364,191,809.40
  4. Step 4: Simplify right side
    425,413,812.60x = 232,398,339,231,819,744
  5. Step 5: Solve for x
    x = 232,398,339,231,819,744/425,413,812.60
  6. Step 6: Final answer
    x = 546,287,714.10

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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.