Home / 80,424,007.10-120,636,010.65-57,749,191.10

Finding the Fourth Proportional to 80,424,007.10, 120,636,010.65 and 57,749,191.10

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Solution

The fourth proportional to 80,424,007.10, 120,636,010.65 and 57,749,191.10 is: 86,623,786.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,424,007.10 : 120,636,010.65 = 57,749,191.10 : x
  2. Step 2: Convert to fraction form
    80,424,007.10/120,636,010.65 = 57,749,191.10/x
  3. Step 3: Cross multiply
    80,424,007.10x = 120,636,010.65 × 57,749,191.10
  4. Step 4: Simplify right side
    80,424,007.10x = 6,966,632,032,568,486
  5. Step 5: Solve for x
    x = 6,966,632,032,568,486/80,424,007.10
  6. Step 6: Final answer
    x = 86,623,786.65

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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.