Home / 747,862,804.80-1,121,794,207.20-425,376,532.80

Finding the Fourth Proportional to 747,862,804.80, 1,121,794,207.20 and 425,376,532.80

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Solution

The fourth proportional to 747,862,804.80, 1,121,794,207.20 and 425,376,532.80 is: 638,064,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,862,804.80 : 1,121,794,207.20 = 425,376,532.80 : x
  2. Step 2: Convert to fraction form
    747,862,804.80/1,121,794,207.20 = 425,376,532.80/x
  3. Step 3: Cross multiply
    747,862,804.80x = 1,121,794,207.20 × 425,376,532.80
  4. Step 4: Simplify right side
    747,862,804.80x = 477,184,930,373,860,800
  5. Step 5: Solve for x
    x = 477,184,930,373,860,800/747,862,804.80
  6. Step 6: Final answer
    x = 638,064,799.20

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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.