Home / 148,598,714.88-205,068,696.30-81,623,865.81

Finding the Fourth Proportional to 148,598,714.88, 205,068,696.30 and 81,623,865.81

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Solution

The fourth proportional to 148,598,714.88, 205,068,696.30 and 81,623,865.81 is: 112,642,291.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,598,714.88 : 205,068,696.30 = 81,623,865.81 : x
  2. Step 2: Convert to fraction form
    148,598,714.88/205,068,696.30 = 81,623,865.81/x
  3. Step 3: Cross multiply
    148,598,714.88x = 205,068,696.30 × 81,623,865.81
  4. Step 4: Simplify right side
    148,598,714.88x = 16,738,499,747,853,838
  5. Step 5: Solve for x
    x = 16,738,499,747,853,838/148,598,714.88
  6. Step 6: Final answer
    x = 112,642,291.43

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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.