Home / 117,146,102.15-161,658,121.55-64,221,000.98

Finding the Fourth Proportional to 117,146,102.15, 161,658,121.55 and 64,221,000.98

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Solution

The fourth proportional to 117,146,102.15, 161,658,121.55 and 64,221,000.98 is: 88,623,062.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,146,102.15 : 161,658,121.55 = 64,221,000.98 : x
  2. Step 2: Convert to fraction form
    117,146,102.15/161,658,121.55 = 64,221,000.98/x
  3. Step 3: Cross multiply
    117,146,102.15x = 161,658,121.55 × 64,221,000.98
  4. Step 4: Simplify right side
    117,146,102.15x = 10,381,846,381,358,112
  5. Step 5: Solve for x
    x = 10,381,846,381,358,112/117,146,102.15
  6. Step 6: Final answer
    x = 88,623,062.92

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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.