Home / 109,513,401.60-164,270,102.40-66,431,251.20

Finding the Fourth Proportional to 109,513,401.60, 164,270,102.40 and 66,431,251.20

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Solution

The fourth proportional to 109,513,401.60, 164,270,102.40 and 66,431,251.20 is: 99,646,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,513,401.60 : 164,270,102.40 = 66,431,251.20 : x
  2. Step 2: Convert to fraction form
    109,513,401.60/164,270,102.40 = 66,431,251.20/x
  3. Step 3: Cross multiply
    109,513,401.60x = 164,270,102.40 × 66,431,251.20
  4. Step 4: Simplify right side
    109,513,401.60x = 10,912,668,437,184,124
  5. Step 5: Solve for x
    x = 10,912,668,437,184,124/109,513,401.60
  6. Step 6: Final answer
    x = 99,646,876.80

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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.