Home / 51,158,019.20-76,671,710.40-20,831,619.20

Finding the Fourth Proportional to 51,158,019.20, 76,671,710.40 and 20,831,619.20

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Solution

The fourth proportional to 51,158,019.20, 76,671,710.40 and 20,831,619.20 is: 31,220,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,158,019.20 : 76,671,710.40 = 20,831,619.20 : x
  2. Step 2: Convert to fraction form
    51,158,019.20/76,671,710.40 = 20,831,619.20/x
  3. Step 3: Cross multiply
    51,158,019.20x = 76,671,710.40 × 20,831,619.20
  4. Step 4: Simplify right side
    51,158,019.20x = 1,597,195,874,465,479.75
  5. Step 5: Solve for x
    x = 1,597,195,874,465,479.75/51,158,019.20
  6. Step 6: Final answer
    x = 31,220,831.05

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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.