Home / 18,402,440.53-25,394,331.60-10,142,477.78

Finding the Fourth Proportional to 18,402,440.53, 25,394,331.60 and 10,142,477.78

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Solution

The fourth proportional to 18,402,440.53, 25,394,331.60 and 10,142,477.78 is: 13,996,048.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402,440.53 : 25,394,331.60 = 10,142,477.78 : x
  2. Step 2: Convert to fraction form
    18,402,440.53/25,394,331.60 = 10,142,477.78/x
  3. Step 3: Cross multiply
    18,402,440.53x = 25,394,331.60 × 10,142,477.78
  4. Step 4: Simplify right side
    18,402,440.53x = 257,561,443,990,951.84
  5. Step 5: Solve for x
    x = 257,561,443,990,951.84/18,402,440.53
  6. Step 6: Final answer
    x = 13,996,048.16

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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.