Home / 519,297,785.02-716,679,017.67-287,510,777.02

Finding the Fourth Proportional to 519,297,785.02, 716,679,017.67 and 287,510,777.02

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Solution

The fourth proportional to 519,297,785.02, 716,679,017.67 and 287,510,777.02 is: 396,791,488.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,297,785.02 : 716,679,017.67 = 287,510,777.02 : x
  2. Step 2: Convert to fraction form
    519,297,785.02/716,679,017.67 = 287,510,777.02/x
  3. Step 3: Cross multiply
    519,297,785.02x = 716,679,017.67 × 287,510,777.02
  4. Step 4: Simplify right side
    519,297,785.02x = 206,052,941,244,231,968
  5. Step 5: Solve for x
    x = 206,052,941,244,231,968/519,297,785.02
  6. Step 6: Final answer
    x = 396,791,488.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.