Home / 7,191,060.86-9,923,598.40-3,927,875.06

Finding the Fourth Proportional to 7,191,060.86, 9,923,598.40 and 3,927,875.06

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Solution

The fourth proportional to 7,191,060.86, 9,923,598.40 and 3,927,875.06 is: 5,420,431.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191,060.86 : 9,923,598.40 = 3,927,875.06 : x
  2. Step 2: Convert to fraction form
    7,191,060.86/9,923,598.40 = 3,927,875.06/x
  3. Step 3: Cross multiply
    7,191,060.86x = 9,923,598.40 × 3,927,875.06
  4. Step 4: Simplify right side
    7,191,060.86x = 38,978,654,660,815.91
  5. Step 5: Solve for x
    x = 38,978,654,660,815.91/7,191,060.86
  6. Step 6: Final answer
    x = 5,420,431.76

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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.