Home / 86,932,001.70-130,398,002.55-80,362,836.90

Finding the Fourth Proportional to 86,932,001.70, 130,398,002.55 and 80,362,836.90

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Solution

The fourth proportional to 86,932,001.70, 130,398,002.55 and 80,362,836.90 is: 120,544,255.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,932,001.70 : 130,398,002.55 = 80,362,836.90 : x
  2. Step 2: Convert to fraction form
    86,932,001.70/130,398,002.55 = 80,362,836.90/x
  3. Step 3: Cross multiply
    86,932,001.70x = 130,398,002.55 × 80,362,836.90
  4. Step 4: Simplify right side
    86,932,001.70x = 10,479,153,411,011,434
  5. Step 5: Solve for x
    x = 10,479,153,411,011,434/86,932,001.70
  6. Step 6: Final answer
    x = 120,544,255.35

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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.