Home / 154,571,138.23-213,309,818.65-84,006,748.07

Finding the Fourth Proportional to 154,571,138.23, 213,309,818.65 and 84,006,748.07

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Solution

The fourth proportional to 154,571,138.23, 213,309,818.65 and 84,006,748.07 is: 115,930,207.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,571,138.23 : 213,309,818.65 = 84,006,748.07 : x
  2. Step 2: Convert to fraction form
    154,571,138.23/213,309,818.65 = 84,006,748.07/x
  3. Step 3: Cross multiply
    154,571,138.23x = 213,309,818.65 × 84,006,748.07
  4. Step 4: Simplify right side
    154,571,138.23x = 17,919,464,196,625,722
  5. Step 5: Solve for x
    x = 17,919,464,196,625,722/154,571,138.23
  6. Step 6: Final answer
    x = 115,930,207.94

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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.