Home / 2,015,189.90-3,020,160.45-816,130.70

Finding the Fourth Proportional to 2,015,189.90, 3,020,160.45 and 816,130.70

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Solution

The fourth proportional to 2,015,189.90, 3,020,160.45 and 816,130.70 is: 1,223,133.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015,189.90 : 3,020,160.45 = 816,130.70 : x
  2. Step 2: Convert to fraction form
    2,015,189.90/3,020,160.45 = 816,130.70/x
  3. Step 3: Cross multiply
    2,015,189.90x = 3,020,160.45 × 816,130.70
  4. Step 4: Simplify right side
    2,015,189.90x = 2,464,845,662,170.82
  5. Step 5: Solve for x
    x = 2,464,845,662,170.82/2,015,189.90
  6. Step 6: Final answer
    x = 1,223,133.20

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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.