Home / 99,512,780.80-149,335,526.40-45,632,358.40

Finding the Fourth Proportional to 99,512,780.80, 149,335,526.40 and 45,632,358.40

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Solution

The fourth proportional to 99,512,780.80, 149,335,526.40 and 45,632,358.40 is: 68,478,965.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,512,780.80 : 149,335,526.40 = 45,632,358.40 : x
  2. Step 2: Convert to fraction form
    99,512,780.80/149,335,526.40 = 45,632,358.40/x
  3. Step 3: Cross multiply
    99,512,780.80x = 149,335,526.40 × 45,632,358.40
  4. Step 4: Simplify right side
    99,512,780.80x = 6,814,532,262,537,462
  5. Step 5: Solve for x
    x = 6,814,532,262,537,462/99,512,780.80
  6. Step 6: Final answer
    x = 68,478,965.29

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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.