Home / 3,181,381.12-4,390,409.60-1,823,510.40

Finding the Fourth Proportional to 3,181,381.12, 4,390,409.60 and 1,823,510.40

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Solution

The fourth proportional to 3,181,381.12, 4,390,409.60 and 1,823,510.40 is: 2,516,503.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181,381.12 : 4,390,409.60 = 1,823,510.40 : x
  2. Step 2: Convert to fraction form
    3,181,381.12/4,390,409.60 = 1,823,510.40/x
  3. Step 3: Cross multiply
    3,181,381.12x = 4,390,409.60 × 1,823,510.40
  4. Step 4: Simplify right side
    3,181,381.12x = 8,005,957,565,859.84
  5. Step 5: Solve for x
    x = 8,005,957,565,859.84/3,181,381.12
  6. Step 6: Final answer
    x = 2,516,503.76

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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.