Home / 12,551,990.70-18,819,128.70-5,731,831.20

Finding the Fourth Proportional to 12,551,990.70, 18,819,128.70 and 5,731,831.20

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Solution

The fourth proportional to 12,551,990.70, 18,819,128.70 and 5,731,831.20 is: 8,593,702.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551,990.70 : 18,819,128.70 = 5,731,831.20 : x
  2. Step 2: Convert to fraction form
    12,551,990.70/18,819,128.70 = 5,731,831.20/x
  3. Step 3: Cross multiply
    12,551,990.70x = 18,819,128.70 × 5,731,831.20
  4. Step 4: Simplify right side
    12,551,990.70x = 107,868,069,039,475.44
  5. Step 5: Solve for x
    x = 107,868,069,039,475.44/12,551,990.70
  6. Step 6: Final answer
    x = 8,593,702.12

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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.