Home / 18,126,401.78-25,011,507.57-10,390,020.50

Finding the Fourth Proportional to 18,126,401.78, 25,011,507.57 and 10,390,020.50

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Solution

The fourth proportional to 18,126,401.78, 25,011,507.57 and 10,390,020.50 is: 14,336,550.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126,401.78 : 25,011,507.57 = 10,390,020.50 : x
  2. Step 2: Convert to fraction form
    18,126,401.78/25,011,507.57 = 10,390,020.50/x
  3. Step 3: Cross multiply
    18,126,401.78x = 25,011,507.57 × 10,390,020.50
  4. Step 4: Simplify right side
    18,126,401.78x = 259,870,076,388,205.19
  5. Step 5: Solve for x
    x = 259,870,076,388,205.19/18,126,401.78
  6. Step 6: Final answer
    x = 14,336,550.60

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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.