Home / 42,582,078.84-63,873,119.52-13,438,871.40

Finding the Fourth Proportional to 42,582,078.84, 63,873,119.52 and 13,438,871.40

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Solution

The fourth proportional to 42,582,078.84, 63,873,119.52 and 13,438,871.40 is: 20,158,307.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,582,078.84 : 63,873,119.52 = 13,438,871.40 : x
  2. Step 2: Convert to fraction form
    42,582,078.84/63,873,119.52 = 13,438,871.40/x
  3. Step 3: Cross multiply
    42,582,078.84x = 63,873,119.52 × 13,438,871.40
  4. Step 4: Simplify right side
    42,582,078.84x = 858,382,639,146,109.75
  5. Step 5: Solve for x
    x = 858,382,639,146,109.75/42,582,078.84
  6. Step 6: Final answer
    x = 20,158,307.50

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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.