Home / 358,725,288.60-538,087,932.90-99,980,443.80

Finding the Fourth Proportional to 358,725,288.60, 538,087,932.90 and 99,980,443.80

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Solution

The fourth proportional to 358,725,288.60, 538,087,932.90 and 99,980,443.80 is: 149,970,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,725,288.60 : 538,087,932.90 = 99,980,443.80 : x
  2. Step 2: Convert to fraction form
    358,725,288.60/538,087,932.90 = 99,980,443.80/x
  3. Step 3: Cross multiply
    358,725,288.60x = 538,087,932.90 × 99,980,443.80
  4. Step 4: Simplify right side
    358,725,288.60x = 53,798,270,334,766,616
  5. Step 5: Solve for x
    x = 53,798,270,334,766,616/358,725,288.60
  6. Step 6: Final answer
    x = 149,970,665.70

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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.