Home / 118,087,309.40-177,130,964.10-66,431,244.20

Finding the Fourth Proportional to 118,087,309.40, 177,130,964.10 and 66,431,244.20

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Solution

The fourth proportional to 118,087,309.40, 177,130,964.10 and 66,431,244.20 is: 99,646,866.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,087,309.40 : 177,130,964.10 = 66,431,244.20 : x
  2. Step 2: Convert to fraction form
    118,087,309.40/177,130,964.10 = 66,431,244.20/x
  3. Step 3: Cross multiply
    118,087,309.40x = 177,130,964.10 × 66,431,244.20
  4. Step 4: Simplify right side
    118,087,309.40x = 11,767,030,331,508,534
  5. Step 5: Solve for x
    x = 11,767,030,331,508,534/118,087,309.40
  6. Step 6: Final answer
    x = 99,646,866.30

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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.