Home / 147,915,076.98-221,440,891.94-86,315,471.22

Finding the Fourth Proportional to 147,915,076.98, 221,440,891.94 and 86,315,471.22

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Solution

The fourth proportional to 147,915,076.98, 221,440,891.94 and 86,315,471.22 is: 129,221,275.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,915,076.98 : 221,440,891.94 = 86,315,471.22 : x
  2. Step 2: Convert to fraction form
    147,915,076.98/221,440,891.94 = 86,315,471.22/x
  3. Step 3: Cross multiply
    147,915,076.98x = 221,440,891.94 × 86,315,471.22
  4. Step 4: Simplify right side
    147,915,076.98x = 19,113,774,935,178,200
  5. Step 5: Solve for x
    x = 19,113,774,935,178,200/147,915,076.98
  6. Step 6: Final answer
    x = 129,221,275.65

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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.