Home / 409,691,841.20-613,679,291.40-191,528,385.20

Finding the Fourth Proportional to 409,691,841.20, 613,679,291.40 and 191,528,385.20

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Solution

The fourth proportional to 409,691,841.20, 613,679,291.40 and 191,528,385.20 is: 286,891,248.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,691,841.20 : 613,679,291.40 = 191,528,385.20 : x
  2. Step 2: Convert to fraction form
    409,691,841.20/613,679,291.40 = 191,528,385.20/x
  3. Step 3: Cross multiply
    409,691,841.20x = 613,679,291.40 × 191,528,385.20
  4. Step 4: Simplify right side
    409,691,841.20x = 117,537,003,712,522,240
  5. Step 5: Solve for x
    x = 117,537,003,712,522,240/409,691,841.20
  6. Step 6: Final answer
    x = 286,891,248.23

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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.