Home / 100,508,791.91-150,720,340.37-38,249,482.30

Finding the Fourth Proportional to 100,508,791.91, 150,720,340.37 and 38,249,482.30

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Solution

The fourth proportional to 100,508,791.91, 150,720,340.37 and 38,249,482.30 is: 57,357,917.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,508,791.91 : 150,720,340.37 = 38,249,482.30 : x
  2. Step 2: Convert to fraction form
    100,508,791.91/150,720,340.37 = 38,249,482.30/x
  3. Step 3: Cross multiply
    100,508,791.91x = 150,720,340.37 × 38,249,482.30
  4. Step 4: Simplify right side
    100,508,791.91x = 5,764,974,990,664,242
  5. Step 5: Solve for x
    x = 5,764,974,990,664,242/100,508,791.91
  6. Step 6: Final answer
    x = 57,357,917.47

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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.