Home / 121,209,057.28-181,814,265.60-40,429,803.52

Finding the Fourth Proportional to 121,209,057.28, 181,814,265.60 and 40,429,803.52

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Solution

The fourth proportional to 121,209,057.28, 181,814,265.60 and 40,429,803.52 is: 60,644,931.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,209,057.28 : 181,814,265.60 = 40,429,803.52 : x
  2. Step 2: Convert to fraction form
    121,209,057.28/181,814,265.60 = 40,429,803.52/x
  3. Step 3: Cross multiply
    121,209,057.28x = 181,814,265.60 × 40,429,803.52
  4. Step 4: Simplify right side
    121,209,057.28x = 7,350,715,035,341,095
  5. Step 5: Solve for x
    x = 7,350,715,035,341,095/121,209,057.28
  6. Step 6: Final answer
    x = 60,644,931.99

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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.