Home / 86,932,000.70-130,398,001.05-80,362,835.90

Finding the Fourth Proportional to 86,932,000.70, 130,398,001.05 and 80,362,835.90

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Solution

The fourth proportional to 86,932,000.70, 130,398,001.05 and 80,362,835.90 is: 120,544,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,932,000.70 : 130,398,001.05 = 80,362,835.90 : x
  2. Step 2: Convert to fraction form
    86,932,000.70/130,398,001.05 = 80,362,835.90/x
  3. Step 3: Cross multiply
    86,932,000.70x = 130,398,001.05 × 80,362,835.90
  4. Step 4: Simplify right side
    86,932,000.70x = 10,479,153,160,069,178
  5. Step 5: Solve for x
    x = 10,479,153,160,069,178/86,932,000.70
  6. Step 6: Final answer
    x = 120,544,253.85

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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.