Home / 165,967,128.84-229,138,001.22-105,650,155.72

Finding the Fourth Proportional to 165,967,128.84, 229,138,001.22 and 105,650,155.72

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Solution

The fourth proportional to 165,967,128.84, 229,138,001.22 and 105,650,155.72 is: 145,863,013.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,967,128.84 : 229,138,001.22 = 105,650,155.72 : x
  2. Step 2: Convert to fraction form
    165,967,128.84/229,138,001.22 = 105,650,155.72/x
  3. Step 3: Cross multiply
    165,967,128.84x = 229,138,001.22 × 105,650,155.72
  4. Step 4: Simplify right side
    165,967,128.84x = 24,208,465,510,262,548
  5. Step 5: Solve for x
    x = 24,208,465,510,262,548/165,967,128.84
  6. Step 6: Final answer
    x = 145,863,013.23

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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.