Home / 82,322,686.46-123,637,566.29-72,478,240.16

Finding the Fourth Proportional to 82,322,686.46, 123,637,566.29 and 72,478,240.16

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Solution

The fourth proportional to 82,322,686.46, 123,637,566.29 and 72,478,240.16 is: 108,852,536.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,322,686.46 : 123,637,566.29 = 72,478,240.16 : x
  2. Step 2: Convert to fraction form
    82,322,686.46/123,637,566.29 = 72,478,240.16/x
  3. Step 3: Cross multiply
    82,322,686.46x = 123,637,566.29 × 72,478,240.16
  4. Step 4: Simplify right side
    82,322,686.46x = 8,961,033,221,383,961
  5. Step 5: Solve for x
    x = 8,961,033,221,383,961/82,322,686.46
  6. Step 6: Final answer
    x = 108,852,536.36

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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.