Home / 126,123,130.80-189,184,696.20-74,254,489.20

Finding the Fourth Proportional to 126,123,130.80, 189,184,696.20 and 74,254,489.20

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Solution

The fourth proportional to 126,123,130.80, 189,184,696.20 and 74,254,489.20 is: 111,381,733.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,123,130.80 : 189,184,696.20 = 74,254,489.20 : x
  2. Step 2: Convert to fraction form
    126,123,130.80/189,184,696.20 = 74,254,489.20/x
  3. Step 3: Cross multiply
    126,123,130.80x = 189,184,696.20 × 74,254,489.20
  4. Step 4: Simplify right side
    126,123,130.80x = 14,047,812,980,788,180
  5. Step 5: Solve for x
    x = 14,047,812,980,788,180/126,123,130.80
  6. Step 6: Final answer
    x = 111,381,733.80

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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.