Home / 142,496,252.28-196,645,209.30-77,306,156.28

Finding the Fourth Proportional to 142,496,252.28, 196,645,209.30 and 77,306,156.28

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Solution

The fourth proportional to 142,496,252.28, 196,645,209.30 and 77,306,156.28 is: 106,682,702.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,496,252.28 : 196,645,209.30 = 77,306,156.28 : x
  2. Step 2: Convert to fraction form
    142,496,252.28/196,645,209.30 = 77,306,156.28/x
  3. Step 3: Cross multiply
    142,496,252.28x = 196,645,209.30 × 77,306,156.28
  4. Step 4: Simplify right side
    142,496,252.28x = 15,201,885,281,859,110
  5. Step 5: Solve for x
    x = 15,201,885,281,859,110/142,496,252.28
  6. Step 6: Final answer
    x = 106,682,702.45

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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.