Home / 142,064,812,227.36-196,024,523,471.12-81,069,330,439.20

Finding the Fourth Proportional to 142,064,812,227.36, 196,024,523,471.12 and 81,069,330,439.20

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Solution

The fourth proportional to 142,064,812,227.36, 196,024,523,471.12 and 81,069,330,439.20 is: 111,861,456,882.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,064,812,227.36 : 196,024,523,471.12 = 81,069,330,439.20 : x
  2. Step 2: Convert to fraction form
    142,064,812,227.36/196,024,523,471.12 = 81,069,330,439.20/x
  3. Step 3: Cross multiply
    142,064,812,227.36x = 196,024,523,471.12 × 81,069,330,439.20
  4. Step 4: Simplify right side
    142,064,812,227.36x = 15,891,576,867,466,942,349,312
  5. Step 5: Solve for x
    x = 15,891,576,867,466,942,349,312/142,064,812,227.36
  6. Step 6: Final answer
    x = 111,861,456,882.33

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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.