Home / 90,264,240-124,564,651.20-51,633,072

Finding the Fourth Proportional to 90,264,240, 124,564,651.20 and 51,633,072

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Solution

The fourth proportional to 90,264,240, 124,564,651.20 and 51,633,072 is: 71,253,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,264,240 : 124,564,651.20 = 51,633,072 : x
  2. Step 2: Convert to fraction form
    90,264,240/124,564,651.20 = 51,633,072/x
  3. Step 3: Cross multiply
    90,264,240x = 124,564,651.20 × 51,633,072
  4. Step 4: Simplify right side
    90,264,240x = 6,431,655,604,064,487
  5. Step 5: Solve for x
    x = 6,431,655,604,064,487/90,264,240
  6. Step 6: Final answer
    x = 71,253,639.36

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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.