Home / 131,228,005.64-181,091,137.86-72,489,406.55

Finding the Fourth Proportional to 131,228,005.64, 181,091,137.86 and 72,489,406.55

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Solution

The fourth proportional to 131,228,005.64, 181,091,137.86 and 72,489,406.55 is: 100,033,442.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,228,005.64 : 181,091,137.86 = 72,489,406.55 : x
  2. Step 2: Convert to fraction form
    131,228,005.64/181,091,137.86 = 72,489,406.55/x
  3. Step 3: Cross multiply
    131,228,005.64x = 181,091,137.86 × 72,489,406.55
  4. Step 4: Simplify right side
    131,228,005.64x = 13,127,189,114,030,182
  5. Step 5: Solve for x
    x = 13,127,189,114,030,182/131,228,005.64
  6. Step 6: Final answer
    x = 100,033,442.18

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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.