Home / 261,112,129,864.60-391,847,103,323.74-91,131,718,851.49

Finding the Fourth Proportional to 261,112,129,864.60, 391,847,103,323.74 and 91,131,718,851.49

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Solution

The fourth proportional to 261,112,129,864.60, 391,847,103,323.74 and 91,131,718,851.49 is: 136,760,019,809.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,112,129,864.60 : 391,847,103,323.74 = 91,131,718,851.49 : x
  2. Step 2: Convert to fraction form
    261,112,129,864.60/391,847,103,323.74 = 91,131,718,851.49/x
  3. Step 3: Cross multiply
    261,112,129,864.60x = 391,847,103,323.74 × 91,131,718,851.49
  4. Step 4: Simplify right side
    261,112,129,864.60x = 35,709,700,052,869,829,361,664
  5. Step 5: Solve for x
    x = 35,709,700,052,869,829,361,664/261,112,129,864.60
  6. Step 6: Final answer
    x = 136,760,019,809.83

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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.