Home / 12,117,260.40-18,151,396.20-7,554,303.60

Finding the Fourth Proportional to 12,117,260.40, 18,151,396.20 and 7,554,303.60

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Solution

The fourth proportional to 12,117,260.40, 18,151,396.20 and 7,554,303.60 is: 11,316,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117,260.40 : 18,151,396.20 = 7,554,303.60 : x
  2. Step 2: Convert to fraction form
    12,117,260.40/18,151,396.20 = 7,554,303.60/x
  3. Step 3: Cross multiply
    12,117,260.40x = 18,151,396.20 × 7,554,303.60
  4. Step 4: Simplify right side
    12,117,260.40x = 137,121,157,658,686.31
  5. Step 5: Solve for x
    x = 137,121,157,658,686.31/12,117,260.40
  6. Step 6: Final answer
    x = 11,316,184.78

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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.