Home / 12,292,276.80-18,438,415.20-9,900,792.30

Finding the Fourth Proportional to 12,292,276.80, 18,438,415.20 and 9,900,792.30

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Solution

The fourth proportional to 12,292,276.80, 18,438,415.20 and 9,900,792.30 is: 14,851,188.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,292,276.80 : 18,438,415.20 = 9,900,792.30 : x
  2. Step 2: Convert to fraction form
    12,292,276.80/18,438,415.20 = 9,900,792.30/x
  3. Step 3: Cross multiply
    12,292,276.80x = 18,438,415.20 × 9,900,792.30
  4. Step 4: Simplify right side
    12,292,276.80x = 182,554,919,236,362.97
  5. Step 5: Solve for x
    x = 182,554,919,236,362.97/12,292,276.80
  6. Step 6: Final answer
    x = 14,851,188.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.