Home / 81,490,667.40-122,236,001.10-26,911,676.70

Finding the Fourth Proportional to 81,490,667.40, 122,236,001.10 and 26,911,676.70

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Solution

The fourth proportional to 81,490,667.40, 122,236,001.10 and 26,911,676.70 is: 40,367,515.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,490,667.40 : 122,236,001.10 = 26,911,676.70 : x
  2. Step 2: Convert to fraction form
    81,490,667.40/122,236,001.10 = 26,911,676.70/x
  3. Step 3: Cross multiply
    81,490,667.40x = 122,236,001.10 × 26,911,676.70
  4. Step 4: Simplify right side
    81,490,667.40x = 3,289,575,742,704,044
  5. Step 5: Solve for x
    x = 3,289,575,742,704,044/81,490,667.40
  6. Step 6: Final answer
    x = 40,367,515.05

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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.