Home / 12,785,406.33-19,177,978.27-7,390,624.08

Finding the Fourth Proportional to 12,785,406.33, 19,177,978.27 and 7,390,624.08

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Solution

The fourth proportional to 12,785,406.33, 19,177,978.27 and 7,390,624.08 is: 11,085,860.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785,406.33 : 19,177,978.27 = 7,390,624.08 : x
  2. Step 2: Convert to fraction form
    12,785,406.33/19,177,978.27 = 7,390,624.08/x
  3. Step 3: Cross multiply
    12,785,406.33x = 19,177,978.27 × 7,390,624.08
  4. Step 4: Simplify right side
    12,785,406.33x = 141,737,227,893,612.28
  5. Step 5: Solve for x
    x = 141,737,227,893,612.28/12,785,406.33
  6. Step 6: Final answer
    x = 11,085,860.26

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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.