Home / 80,942,457.08-121,353,849.24-42,025,032.68

Finding the Fourth Proportional to 80,942,457.08, 121,353,849.24 and 42,025,032.68

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Solution

The fourth proportional to 80,942,457.08, 121,353,849.24 and 42,025,032.68 is: 63,006,482.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,942,457.08 : 121,353,849.24 = 42,025,032.68 : x
  2. Step 2: Convert to fraction form
    80,942,457.08/121,353,849.24 = 42,025,032.68/x
  3. Step 3: Cross multiply
    80,942,457.08x = 121,353,849.24 × 42,025,032.68
  4. Step 4: Simplify right side
    80,942,457.08x = 5,099,899,480,154,793
  5. Step 5: Solve for x
    x = 5,099,899,480,154,793/80,942,457.08
  6. Step 6: Final answer
    x = 63,006,482.19

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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.