Home / 99,853,894.40-149,780,841.60-39,238,419.20

Finding the Fourth Proportional to 99,853,894.40, 149,780,841.60 and 39,238,419.20

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Solution

The fourth proportional to 99,853,894.40, 149,780,841.60 and 39,238,419.20 is: 58,857,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,853,894.40 : 149,780,841.60 = 39,238,419.20 : x
  2. Step 2: Convert to fraction form
    99,853,894.40/149,780,841.60 = 39,238,419.20/x
  3. Step 3: Cross multiply
    99,853,894.40x = 149,780,841.60 × 39,238,419.20
  4. Step 4: Simplify right side
    99,853,894.40x = 5,877,163,450,829,599
  5. Step 5: Solve for x
    x = 5,877,163,450,829,599/99,853,894.40
  6. Step 6: Final answer
    x = 58,857,628.80

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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.