Home / 140,248,515.84-193,539,238.40-78,369,363.20

Finding the Fourth Proportional to 140,248,515.84, 193,539,238.40 and 78,369,363.20

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Solution

The fourth proportional to 140,248,515.84, 193,539,238.40 and 78,369,363.20 is: 108,147,646.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,248,515.84 : 193,539,238.40 = 78,369,363.20 : x
  2. Step 2: Convert to fraction form
    140,248,515.84/193,539,238.40 = 78,369,363.20/x
  3. Step 3: Cross multiply
    140,248,515.84x = 193,539,238.40 × 78,369,363.20
  4. Step 4: Simplify right side
    140,248,515.84x = 15,167,546,867,620,988
  5. Step 5: Solve for x
    x = 15,167,546,867,620,988/140,248,515.84
  6. Step 6: Final answer
    x = 108,147,646.17

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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.