Home / 91,126,919.72-125,755,482.50-49,310,985.40

Finding the Fourth Proportional to 91,126,919.72, 125,755,482.50 and 49,310,985.40

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Solution

The fourth proportional to 91,126,919.72, 125,755,482.50 and 49,310,985.40 is: 68,049,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,126,919.72 : 125,755,482.50 = 49,310,985.40 : x
  2. Step 2: Convert to fraction form
    91,126,919.72/125,755,482.50 = 49,310,985.40/x
  3. Step 3: Cross multiply
    91,126,919.72x = 125,755,482.50 × 49,310,985.40
  4. Step 4: Simplify right side
    91,126,919.72x = 6,201,126,761,527,455
  5. Step 5: Solve for x
    x = 6,201,126,761,527,455/91,126,919.72
  6. Step 6: Final answer
    x = 68,049,340.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.