Home / 30,363,831.18-41,858,505.30-21,646,870.20

Finding the Fourth Proportional to 30,363,831.18, 41,858,505.30 and 21,646,870.20

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Solution

The fourth proportional to 30,363,831.18, 41,858,505.30 and 21,646,870.20 is: 29,841,610.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,363,831.18 : 41,858,505.30 = 21,646,870.20 : x
  2. Step 2: Convert to fraction form
    30,363,831.18/41,858,505.30 = 21,646,870.20/x
  3. Step 3: Cross multiply
    30,363,831.18x = 41,858,505.30 × 21,646,870.20
  4. Step 4: Simplify right side
    30,363,831.18x = 906,105,630,995,112
  5. Step 5: Solve for x
    x = 906,105,630,995,112/30,363,831.18
  6. Step 6: Final answer
    x = 29,841,610.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.