Home / 418,925,616.30-628,671,859.65-188,776,233.90

Finding the Fourth Proportional to 418,925,616.30, 628,671,859.65 and 188,776,233.90

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Solution

The fourth proportional to 418,925,616.30, 628,671,859.65 and 188,776,233.90 is: 283,292,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,925,616.30 : 628,671,859.65 = 188,776,233.90 : x
  2. Step 2: Convert to fraction form
    418,925,616.30/628,671,859.65 = 188,776,233.90/x
  3. Step 3: Cross multiply
    418,925,616.30x = 628,671,859.65 × 188,776,233.90
  4. Step 4: Simplify right side
    418,925,616.30x = 118,678,306,023,636,368
  5. Step 5: Solve for x
    x = 118,678,306,023,636,368/418,925,616.30
  6. Step 6: Final answer
    x = 283,292,072.40

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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.