Home / 141,912,002.90-212,868,004.35-81,277,865.30

Finding the Fourth Proportional to 141,912,002.90, 212,868,004.35 and 81,277,865.30

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Solution

The fourth proportional to 141,912,002.90, 212,868,004.35 and 81,277,865.30 is: 121,916,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,912,002.90 : 212,868,004.35 = 81,277,865.30 : x
  2. Step 2: Convert to fraction form
    141,912,002.90/212,868,004.35 = 81,277,865.30/x
  3. Step 3: Cross multiply
    141,912,002.90x = 212,868,004.35 × 81,277,865.30
  4. Step 4: Simplify right side
    141,912,002.90x = 17,301,456,984,239,112
  5. Step 5: Solve for x
    x = 17,301,456,984,239,112/141,912,002.90
  6. Step 6: Final answer
    x = 121,916,797.95

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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.