Home / 55,775,320.70-83,662,981.05-19,371,612.20

Finding the Fourth Proportional to 55,775,320.70, 83,662,981.05 and 19,371,612.20

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Solution

The fourth proportional to 55,775,320.70, 83,662,981.05 and 19,371,612.20 is: 29,057,418.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,775,320.70 : 83,662,981.05 = 19,371,612.20 : x
  2. Step 2: Convert to fraction form
    55,775,320.70/83,662,981.05 = 19,371,612.20/x
  3. Step 3: Cross multiply
    55,775,320.70x = 83,662,981.05 × 19,371,612.20
  4. Step 4: Simplify right side
    55,775,320.70x = 1,620,686,824,396,548.75
  5. Step 5: Solve for x
    x = 1,620,686,824,396,548.75/55,775,320.70
  6. Step 6: Final answer
    x = 29,057,418.30

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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.