Home / 8,311,968.40-12,475,825.80-5,123,322.40

Finding the Fourth Proportional to 8,311,968.40, 12,475,825.80 and 5,123,322.40

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Solution

The fourth proportional to 8,311,968.40, 12,475,825.80 and 5,123,322.40 is: 7,689,836.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311,968.40 : 12,475,825.80 = 5,123,322.40 : x
  2. Step 2: Convert to fraction form
    8,311,968.40/12,475,825.80 = 5,123,322.40/x
  3. Step 3: Cross multiply
    8,311,968.40x = 12,475,825.80 × 5,123,322.40
  4. Step 4: Simplify right side
    8,311,968.40x = 63,917,677,779,637.93
  5. Step 5: Solve for x
    x = 63,917,677,779,637.93/8,311,968.40
  6. Step 6: Final answer
    x = 7,689,836.47

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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.