Home / 18,255,665.18-25,185,434.28-10,909,305.38

Finding the Fourth Proportional to 18,255,665.18, 25,185,434.28 and 10,909,305.38

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Solution

The fourth proportional to 18,255,665.18, 25,185,434.28 and 10,909,305.38 is: 15,050,429.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255,665.18 : 25,185,434.28 = 10,909,305.38 : x
  2. Step 2: Convert to fraction form
    18,255,665.18/25,185,434.28 = 10,909,305.38/x
  3. Step 3: Cross multiply
    18,255,665.18x = 25,185,434.28 × 10,909,305.38
  4. Step 4: Simplify right side
    18,255,665.18x = 274,755,593,688,440.47
  5. Step 5: Solve for x
    x = 274,755,593,688,440.47/18,255,665.18
  6. Step 6: Final answer
    x = 15,050,429.06

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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.