Home / 465,428,780.10-698,143,170.15-206,369,007.30

Finding the Fourth Proportional to 465,428,780.10, 698,143,170.15 and 206,369,007.30

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Solution

The fourth proportional to 465,428,780.10, 698,143,170.15 and 206,369,007.30 is: 309,553,510.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,428,780.10 : 698,143,170.15 = 206,369,007.30 : x
  2. Step 2: Convert to fraction form
    465,428,780.10/698,143,170.15 = 206,369,007.30/x
  3. Step 3: Cross multiply
    465,428,780.10x = 698,143,170.15 × 206,369,007.30
  4. Step 4: Simplify right side
    465,428,780.10x = 144,075,112,977,130,496
  5. Step 5: Solve for x
    x = 144,075,112,977,130,496/465,428,780.10
  6. Step 6: Final answer
    x = 309,553,510.95

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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.