Home / 122,484,139.90-168,914,574.88-89,391,972.22

Finding the Fourth Proportional to 122,484,139.90, 168,914,574.88 and 89,391,972.22

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Solution

The fourth proportional to 122,484,139.90, 168,914,574.88 and 89,391,972.22 is: 123,278,058.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,484,139.90 : 168,914,574.88 = 89,391,972.22 : x
  2. Step 2: Convert to fraction form
    122,484,139.90/168,914,574.88 = 89,391,972.22/x
  3. Step 3: Cross multiply
    122,484,139.90x = 168,914,574.88 × 89,391,972.22
  4. Step 4: Simplify right side
    122,484,139.90x = 15,099,606,985,684,224
  5. Step 5: Solve for x
    x = 15,099,606,985,684,224/122,484,139.90
  6. Step 6: Final answer
    x = 123,278,058.68

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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.