Home / 15,898,447.20-21,939,940.32-8,655,155.04

Finding the Fourth Proportional to 15,898,447.20, 21,939,940.32 and 8,655,155.04

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Solution

The fourth proportional to 15,898,447.20, 21,939,940.32 and 8,655,155.04 is: 11,944,159.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,898,447.20 : 21,939,940.32 = 8,655,155.04 : x
  2. Step 2: Convert to fraction form
    15,898,447.20/21,939,940.32 = 8,655,155.04/x
  3. Step 3: Cross multiply
    15,898,447.20x = 21,939,940.32 × 8,655,155.04
  4. Step 4: Simplify right side
    15,898,447.20x = 189,893,585,037,947.19
  5. Step 5: Solve for x
    x = 189,893,585,037,947.19/15,898,447.20
  6. Step 6: Final answer
    x = 11,944,159.24

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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.