Home / 75,147,959.88-103,704,582.96-42,108,280.20

Finding the Fourth Proportional to 75,147,959.88, 103,704,582.96 and 42,108,280.20

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Solution

The fourth proportional to 75,147,959.88, 103,704,582.96 and 42,108,280.20 is: 58,109,649.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,147,959.88 : 103,704,582.96 = 42,108,280.20 : x
  2. Step 2: Convert to fraction form
    75,147,959.88/103,704,582.96 = 42,108,280.20/x
  3. Step 3: Cross multiply
    75,147,959.88x = 103,704,582.96 × 42,108,280.20
  4. Step 4: Simplify right side
    75,147,959.88x = 4,366,821,637,303,825.50
  5. Step 5: Solve for x
    x = 4,366,821,637,303,825.50/75,147,959.88
  6. Step 6: Final answer
    x = 58,109,649.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.