Home / 20,131,831.40-30,138,764.70-17,772,535.40

Finding the Fourth Proportional to 20,131,831.40, 30,138,764.70 and 17,772,535.40

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Solution

The fourth proportional to 20,131,831.40, 30,138,764.70 and 17,772,535.40 is: 26,606,732.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131,831.40 : 30,138,764.70 = 17,772,535.40 : x
  2. Step 2: Convert to fraction form
    20,131,831.40/30,138,764.70 = 17,772,535.40/x
  3. Step 3: Cross multiply
    20,131,831.40x = 30,138,764.70 × 17,772,535.40
  4. Step 4: Simplify right side
    20,131,831.40x = 535,642,262,543,020.31
  5. Step 5: Solve for x
    x = 535,642,262,543,020.31/20,131,831.40
  6. Step 6: Final answer
    x = 26,606,732.98

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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.