Home / 381,845,489.10-572,768,233.65-139,476,900.30

Finding the Fourth Proportional to 381,845,489.10, 572,768,233.65 and 139,476,900.30

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Solution

The fourth proportional to 381,845,489.10, 572,768,233.65 and 139,476,900.30 is: 209,215,350.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,845,489.10 : 572,768,233.65 = 139,476,900.30 : x
  2. Step 2: Convert to fraction form
    381,845,489.10/572,768,233.65 = 139,476,900.30/x
  3. Step 3: Cross multiply
    381,845,489.10x = 572,768,233.65 × 139,476,900.30
  4. Step 4: Simplify right side
    381,845,489.10x = 79,887,937,819,808,160
  5. Step 5: Solve for x
    x = 79,887,937,819,808,160/381,845,489.10
  6. Step 6: Final answer
    x = 209,215,350.45

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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.