Home / 123,138,923.04-169,931,726.96-67,384,355.58

Finding the Fourth Proportional to 123,138,923.04, 169,931,726.96 and 67,384,355.58

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Solution

The fourth proportional to 123,138,923.04, 169,931,726.96 and 67,384,355.58 is: 92,990,417.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,138,923.04 : 169,931,726.96 = 67,384,355.58 : x
  2. Step 2: Convert to fraction form
    123,138,923.04/169,931,726.96 = 67,384,355.58/x
  3. Step 3: Cross multiply
    123,138,923.04x = 169,931,726.96 × 67,384,355.58
  4. Step 4: Simplify right side
    123,138,923.04x = 11,450,739,913,459,192
  5. Step 5: Solve for x
    x = 11,450,739,913,459,192/123,138,923.04
  6. Step 6: Final answer
    x = 92,990,417.90

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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.