Home / 219,868,831.20-329,803,246.80-76,261,663.20

Finding the Fourth Proportional to 219,868,831.20, 329,803,246.80 and 76,261,663.20

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Solution

The fourth proportional to 219,868,831.20, 329,803,246.80 and 76,261,663.20 is: 114,392,494.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,868,831.20 : 329,803,246.80 = 76,261,663.20 : x
  2. Step 2: Convert to fraction form
    219,868,831.20/329,803,246.80 = 76,261,663.20/x
  3. Step 3: Cross multiply
    219,868,831.20x = 329,803,246.80 × 76,261,663.20
  4. Step 4: Simplify right side
    219,868,831.20x = 25,151,344,129,728,080
  5. Step 5: Solve for x
    x = 25,151,344,129,728,080/219,868,831.20
  6. Step 6: Final answer
    x = 114,392,494.80

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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.