Home / 810,845,260.00-1,216,144,999.14-220,681,488.71

Finding the Fourth Proportional to 810,845,260.00, 1,216,144,999.14 and 220,681,488.71

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Solution

The fourth proportional to 810,845,260.00, 1,216,144,999.14 and 220,681,488.71 is: 330,988,786.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,845,260.00 : 1,216,144,999.14 = 220,681,488.71 : x
  2. Step 2: Convert to fraction form
    810,845,260.00/1,216,144,999.14 = 220,681,488.71/x
  3. Step 3: Cross multiply
    810,845,260.00x = 1,216,144,999.14 × 220,681,488.71
  4. Step 4: Simplify right side
    810,845,260.00x = 268,380,688,899,206,080
  5. Step 5: Solve for x
    x = 268,380,688,899,206,080/810,845,260.00
  6. Step 6: Final answer
    x = 330,988,786.81

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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.