Home / 121,209,082.28-181,814,303.10-40,429,828.52

Finding the Fourth Proportional to 121,209,082.28, 181,814,303.10 and 40,429,828.52

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Solution

The fourth proportional to 121,209,082.28, 181,814,303.10 and 40,429,828.52 is: 60,644,969.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,209,082.28 : 181,814,303.10 = 40,429,828.52 : x
  2. Step 2: Convert to fraction form
    121,209,082.28/181,814,303.10 = 40,429,828.52/x
  3. Step 3: Cross multiply
    121,209,082.28x = 181,814,303.10 × 40,429,828.52
  4. Step 4: Simplify right side
    121,209,082.28x = 7,350,721,096,816,305
  5. Step 5: Solve for x
    x = 7,350,721,096,816,305/121,209,082.28
  6. Step 6: Final answer
    x = 60,644,969.49

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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.