Home / 679,087,114.12-1,018,629,399.77-212,784,235.71

Finding the Fourth Proportional to 679,087,114.12, 1,018,629,399.77 and 212,784,235.71

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Solution

The fourth proportional to 679,087,114.12, 1,018,629,399.77 and 212,784,235.71 is: 319,175,955.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,087,114.12 : 1,018,629,399.77 = 212,784,235.71 : x
  2. Step 2: Convert to fraction form
    679,087,114.12/1,018,629,399.77 = 212,784,235.71/x
  3. Step 3: Cross multiply
    679,087,114.12x = 1,018,629,399.77 × 212,784,235.71
  4. Step 4: Simplify right side
    679,087,114.12x = 216,748,278,297,720,320
  5. Step 5: Solve for x
    x = 216,748,278,297,720,320/679,087,114.12
  6. Step 6: Final answer
    x = 319,175,955.18

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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.