Home / 138,976,465.80-208,539,348.30-58,205,598.60

Finding the Fourth Proportional to 138,976,465.80, 208,539,348.30 and 58,205,598.60

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Solution

The fourth proportional to 138,976,465.80, 208,539,348.30 and 58,205,598.60 is: 87,339,662.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,976,465.80 : 208,539,348.30 = 58,205,598.60 : x
  2. Step 2: Convert to fraction form
    138,976,465.80/208,539,348.30 = 58,205,598.60/x
  3. Step 3: Cross multiply
    138,976,465.80x = 208,539,348.30 × 58,205,598.60
  4. Step 4: Simplify right side
    138,976,465.80x = 12,138,157,599,455,394
  5. Step 5: Solve for x
    x = 12,138,157,599,455,394/138,976,465.80
  6. Step 6: Final answer
    x = 87,339,662.36

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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.