Home / 85,675,412.86-118,329,415.68-57,749,959.78

Finding the Fourth Proportional to 85,675,412.86, 118,329,415.68 and 57,749,959.78

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Solution

The fourth proportional to 85,675,412.86, 118,329,415.68 and 57,749,959.78 is: 79,760,561.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,675,412.86 : 118,329,415.68 = 57,749,959.78 : x
  2. Step 2: Convert to fraction form
    85,675,412.86/118,329,415.68 = 57,749,959.78/x
  3. Step 3: Cross multiply
    85,675,412.86x = 118,329,415.68 × 57,749,959.78
  4. Step 4: Simplify right side
    85,675,412.86x = 6,833,518,996,310,902
  5. Step 5: Solve for x
    x = 6,833,518,996,310,902/85,675,412.86
  6. Step 6: Final answer
    x = 79,760,561.03

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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.