Home / 30,545,891.28-42,154,206.66-18,625,403.55

Finding the Fourth Proportional to 30,545,891.28, 42,154,206.66 and 18,625,403.55

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Solution

The fourth proportional to 30,545,891.28, 42,154,206.66 and 18,625,403.55 is: 25,703,591.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,545,891.28 : 42,154,206.66 = 18,625,403.55 : x
  2. Step 2: Convert to fraction form
    30,545,891.28/42,154,206.66 = 18,625,403.55/x
  3. Step 3: Cross multiply
    30,545,891.28x = 42,154,206.66 × 18,625,403.55
  4. Step 4: Simplify right side
    30,545,891.28x = 785,139,110,372,597.62
  5. Step 5: Solve for x
    x = 785,139,110,372,597.62/30,545,891.28
  6. Step 6: Final answer
    x = 25,703,591.46

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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.