Home / 28,430,856.36-42,646,409.37-9,000,177.78

Finding the Fourth Proportional to 28,430,856.36, 42,646,409.37 and 9,000,177.78

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Solution

The fourth proportional to 28,430,856.36, 42,646,409.37 and 9,000,177.78 is: 13,500,306.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,430,856.36 : 42,646,409.37 = 9,000,177.78 : x
  2. Step 2: Convert to fraction form
    28,430,856.36/42,646,409.37 = 9,000,177.78/x
  3. Step 3: Cross multiply
    28,430,856.36x = 42,646,409.37 × 9,000,177.78
  4. Step 4: Simplify right side
    28,430,856.36x = 383,825,266,008,657.75
  5. Step 5: Solve for x
    x = 383,825,266,008,657.75/28,430,856.36
  6. Step 6: Final answer
    x = 13,500,306.19

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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.