Home / 42,154,797.74-58,155,807.51-28,220,642.21

Finding the Fourth Proportional to 42,154,797.74, 58,155,807.51 and 28,220,642.21

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Solution

The fourth proportional to 42,154,797.74, 58,155,807.51 and 28,220,642.21 is: 38,932,561.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,154,797.74 : 58,155,807.51 = 28,220,642.21 : x
  2. Step 2: Convert to fraction form
    42,154,797.74/58,155,807.51 = 28,220,642.21/x
  3. Step 3: Cross multiply
    42,154,797.74x = 58,155,807.51 × 28,220,642.21
  4. Step 4: Simplify right side
    42,154,797.74x = 1,641,194,236,389,282
  5. Step 5: Solve for x
    x = 1,641,194,236,389,282/42,154,797.74
  6. Step 6: Final answer
    x = 38,932,561.05

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1.5x scale

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.