Home / 18,398,284.89-25,389,803.42-10,138,642.76

Finding the Fourth Proportional to 18,398,284.89, 25,389,803.42 and 10,138,642.76

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Solution

The fourth proportional to 18,398,284.89, 25,389,803.42 and 10,138,642.76 is: 13,991,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398,284.89 : 25,389,803.42 = 10,138,642.76 : x
  2. Step 2: Convert to fraction form
    18,398,284.89/25,389,803.42 = 10,138,642.76/x
  3. Step 3: Cross multiply
    18,398,284.89x = 25,389,803.42 × 10,138,642.76
  4. Step 4: Simplify right side
    18,398,284.89x = 257,418,146,710,827.34
  5. Step 5: Solve for x
    x = 257,418,146,710,827.34/18,398,284.89
  6. Step 6: Final answer
    x = 13,991,420.84

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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.