Home / 18,126,401.28-25,011,506.88-10,390,020

Finding the Fourth Proportional to 18,126,401.28, 25,011,506.88 and 10,390,020

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Solution

The fourth proportional to 18,126,401.28, 25,011,506.88 and 10,390,020 is: 14,336,549.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126,401.28 : 25,011,506.88 = 10,390,020 : x
  2. Step 2: Convert to fraction form
    18,126,401.28/25,011,506.88 = 10,390,020/x
  3. Step 3: Cross multiply
    18,126,401.28x = 25,011,506.88 × 10,390,020
  4. Step 4: Simplify right side
    18,126,401.28x = 259,870,056,713,337.59
  5. Step 5: Solve for x
    x = 259,870,056,713,337.59/18,126,401.28
  6. Step 6: Final answer
    x = 14,336,549.91

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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.