Home / 99,385,712.01-148,939,028.33-78,544,520.55

Finding the Fourth Proportional to 99,385,712.01, 148,939,028.33 and 78,544,520.55

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Solution

The fourth proportional to 99,385,712.01, 148,939,028.33 and 78,544,520.55 is: 117,706,502.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,385,712.01 : 148,939,028.33 = 78,544,520.55 : x
  2. Step 2: Convert to fraction form
    99,385,712.01/148,939,028.33 = 78,544,520.55/x
  3. Step 3: Cross multiply
    99,385,712.01x = 148,939,028.33 × 78,544,520.55
  4. Step 4: Simplify right side
    99,385,712.01x = 11,698,344,570,969,994
  5. Step 5: Solve for x
    x = 11,698,344,570,969,994/99,385,712.01
  6. Step 6: Final answer
    x = 117,706,502.62

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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.