Home / 138,170,641.34-190,676,406.86-75,447,174.82

Finding the Fourth Proportional to 138,170,641.34, 190,676,406.86 and 75,447,174.82

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Solution

The fourth proportional to 138,170,641.34, 190,676,406.86 and 75,447,174.82 is: 104,117,604.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,170,641.34 : 190,676,406.86 = 75,447,174.82 : x
  2. Step 2: Convert to fraction form
    138,170,641.34/190,676,406.86 = 75,447,174.82/x
  3. Step 3: Cross multiply
    138,170,641.34x = 190,676,406.86 × 75,447,174.82
  4. Step 4: Simplify right side
    138,170,641.34x = 14,385,996,202,415,866
  5. Step 5: Solve for x
    x = 14,385,996,202,415,866/138,170,641.34
  6. Step 6: Final answer
    x = 104,117,604.60

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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.