Home / 151,569,143.88-209,165,566.92-81,954,506.28

Finding the Fourth Proportional to 151,569,143.88, 209,165,566.92 and 81,954,506.28

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Solution

The fourth proportional to 151,569,143.88, 209,165,566.92 and 81,954,506.28 is: 113,097,298.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,569,143.88 : 209,165,566.92 = 81,954,506.28 : x
  2. Step 2: Convert to fraction form
    151,569,143.88/209,165,566.92 = 81,954,506.28/x
  3. Step 3: Cross multiply
    151,569,143.88x = 209,165,566.92 × 81,954,506.28
  4. Step 4: Simplify right side
    151,569,143.88x = 17,142,060,767,704,900
  5. Step 5: Solve for x
    x = 17,142,060,767,704,900/151,569,143.88
  6. Step 6: Final answer
    x = 113,097,298.89

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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.