Home / 115,207,364.80-172,811,047.20-76,465,315.90

Finding the Fourth Proportional to 115,207,364.80, 172,811,047.20 and 76,465,315.90

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Solution

The fourth proportional to 115,207,364.80, 172,811,047.20 and 76,465,315.90 is: 114,697,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,207,364.80 : 172,811,047.20 = 76,465,315.90 : x
  2. Step 2: Convert to fraction form
    115,207,364.80/172,811,047.20 = 76,465,315.90/x
  3. Step 3: Cross multiply
    115,207,364.80x = 172,811,047.20 × 76,465,315.90
  4. Step 4: Simplify right side
    115,207,364.80x = 13,214,051,315,157,810
  5. Step 5: Solve for x
    x = 13,214,051,315,157,810/115,207,364.80
  6. Step 6: Final answer
    x = 114,697,973.85

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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.