Home / 12,114,315.40-18,146,978.70-7,551,358.60

Finding the Fourth Proportional to 12,114,315.40, 18,146,978.70 and 7,551,358.60

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Solution

The fourth proportional to 12,114,315.40, 18,146,978.70 and 7,551,358.60 is: 11,311,769.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114,315.40 : 18,146,978.70 = 7,551,358.60 : x
  2. Step 2: Convert to fraction form
    12,114,315.40/18,146,978.70 = 7,551,358.60/x
  3. Step 3: Cross multiply
    12,114,315.40x = 18,146,978.70 × 7,551,358.60
  4. Step 4: Simplify right side
    12,114,315.40x = 137,034,343,670,261.81
  5. Step 5: Solve for x
    x = 137,034,343,670,261.81/12,114,315.40
  6. Step 6: Final answer
    x = 11,311,769.52

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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.