Home / 358,760,803.80-538,141,205.70-86,131,570.80

Finding the Fourth Proportional to 358,760,803.80, 538,141,205.70 and 86,131,570.80

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Solution

The fourth proportional to 358,760,803.80, 538,141,205.70 and 86,131,570.80 is: 129,197,356.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,760,803.80 : 538,141,205.70 = 86,131,570.80 : x
  2. Step 2: Convert to fraction form
    358,760,803.80/538,141,205.70 = 86,131,570.80/x
  3. Step 3: Cross multiply
    358,760,803.80x = 538,141,205.70 × 86,131,570.80
  4. Step 4: Simplify right side
    358,760,803.80x = 46,350,947,359,146,920
  5. Step 5: Solve for x
    x = 46,350,947,359,146,920/358,760,803.80
  6. Step 6: Final answer
    x = 129,197,356.20

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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.