Home / 18,640,354.32-25,710,438.11-12,442,276.04

Finding the Fourth Proportional to 18,640,354.32, 25,710,438.11 and 12,442,276.04

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Solution

The fourth proportional to 18,640,354.32, 25,710,438.11 and 12,442,276.04 is: 17,161,496.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640,354.32 : 25,710,438.11 = 12,442,276.04 : x
  2. Step 2: Convert to fraction form
    18,640,354.32/25,710,438.11 = 12,442,276.04/x
  3. Step 3: Cross multiply
    18,640,354.32x = 25,710,438.11 × 12,442,276.04
  4. Step 4: Simplify right side
    18,640,354.32x = 319,896,367,883,192.31
  5. Step 5: Solve for x
    x = 319,896,367,883,192.31/18,640,354.32
  6. Step 6: Final answer
    x = 17,161,496.10

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1.5x scale

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.