Home / 99,856,319.40-149,784,479.10-39,274,021.80

Finding the Fourth Proportional to 99,856,319.40, 149,784,479.10 and 39,274,021.80

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Solution

The fourth proportional to 99,856,319.40, 149,784,479.10 and 39,274,021.80 is: 58,911,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,856,319.40 : 149,784,479.10 = 39,274,021.80 : x
  2. Step 2: Convert to fraction form
    99,856,319.40/149,784,479.10 = 39,274,021.80/x
  3. Step 3: Cross multiply
    99,856,319.40x = 149,784,479.10 × 39,274,021.80
  4. Step 4: Simplify right side
    99,856,319.40x = 5,882,638,897,475,044
  5. Step 5: Solve for x
    x = 5,882,638,897,475,044/99,856,319.40
  6. Step 6: Final answer
    x = 58,911,032.70

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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.