Home / 82,388,831.20-123,583,246.80-21,810,680.80

Finding the Fourth Proportional to 82,388,831.20, 123,583,246.80 and 21,810,680.80

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Solution

The fourth proportional to 82,388,831.20, 123,583,246.80 and 21,810,680.80 is: 32,716,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,388,831.20 : 123,583,246.80 = 21,810,680.80 : x
  2. Step 2: Convert to fraction form
    82,388,831.20/123,583,246.80 = 21,810,680.80/x
  3. Step 3: Cross multiply
    82,388,831.20x = 123,583,246.80 × 21,810,680.80
  4. Step 4: Simplify right side
    82,388,831.20x = 2,695,434,748,182,421.50
  5. Step 5: Solve for x
    x = 2,695,434,748,182,421.50/82,388,831.20
  6. Step 6: Final answer
    x = 32,716,021.20

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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.