Home / 679,952,139.70-1,019,928,209.55-219,936,810.10

Finding the Fourth Proportional to 679,952,139.70, 1,019,928,209.55 and 219,936,810.10

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Solution

The fourth proportional to 679,952,139.70, 1,019,928,209.55 and 219,936,810.10 is: 329,905,215.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,952,139.70 : 1,019,928,209.55 = 219,936,810.10 : x
  2. Step 2: Convert to fraction form
    679,952,139.70/1,019,928,209.55 = 219,936,810.10/x
  3. Step 3: Cross multiply
    679,952,139.70x = 1,019,928,209.55 × 219,936,810.10
  4. Step 4: Simplify right side
    679,952,139.70x = 224,319,756,939,431,328
  5. Step 5: Solve for x
    x = 224,319,756,939,431,328/679,952,139.70
  6. Step 6: Final answer
    x = 329,905,215.15

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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.