Home / 138,931,566.12-208,429,092.54-48,055,078.44

Finding the Fourth Proportional to 138,931,566.12, 208,429,092.54 and 48,055,078.44

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Solution

The fourth proportional to 138,931,566.12, 208,429,092.54 and 48,055,078.44 is: 72,093,597.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,931,566.12 : 208,429,092.54 = 48,055,078.44 : x
  2. Step 2: Convert to fraction form
    138,931,566.12/208,429,092.54 = 48,055,078.44/x
  3. Step 3: Cross multiply
    138,931,566.12x = 208,429,092.54 × 48,055,078.44
  4. Step 4: Simplify right side
    138,931,566.12x = 10,016,076,391,187,718
  5. Step 5: Solve for x
    x = 10,016,076,391,187,718/138,931,566.12
  6. Step 6: Final answer
    x = 72,093,597.38

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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.