Home / 261,112,132,221.98-391,847,106,854.88-91,131,721,208.82

Finding the Fourth Proportional to 261,112,132,221.98, 391,847,106,854.88 and 91,131,721,208.82

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Solution

The fourth proportional to 261,112,132,221.98, 391,847,106,854.88 and 91,131,721,208.82 is: 136,760,023,345.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,112,132,221.98 : 391,847,106,854.88 = 91,131,721,208.82 : x
  2. Step 2: Convert to fraction form
    261,112,132,221.98/391,847,106,854.88 = 91,131,721,208.82/x
  3. Step 3: Cross multiply
    261,112,132,221.98x = 391,847,106,854.88 × 91,131,721,208.82
  4. Step 4: Simplify right side
    261,112,132,221.98x = 35,709,701,298,381,626,802,176
  5. Step 5: Solve for x
    x = 35,709,701,298,381,626,802,176/261,112,132,221.98
  6. Step 6: Final answer
    x = 136,760,023,345.16

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1.5x scale

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.