Home / 99,640,888.90-149,461,333.35-54,291,256.90

Finding the Fourth Proportional to 99,640,888.90, 149,461,333.35 and 54,291,256.90

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Solution

The fourth proportional to 99,640,888.90, 149,461,333.35 and 54,291,256.90 is: 81,436,885.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,640,888.90 : 149,461,333.35 = 54,291,256.90 : x
  2. Step 2: Convert to fraction form
    99,640,888.90/149,461,333.35 = 54,291,256.90/x
  3. Step 3: Cross multiply
    99,640,888.90x = 149,461,333.35 × 54,291,256.90
  4. Step 4: Simplify right side
    99,640,888.90x = 8,114,443,645,521,387
  5. Step 5: Solve for x
    x = 8,114,443,645,521,387/99,640,888.90
  6. Step 6: Final answer
    x = 81,436,885.35

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Similar ratio
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1.5x scale

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.