Home / 287,238,851.10-430,858,276.65-171,012,704.40

Finding the Fourth Proportional to 287,238,851.10, 430,858,276.65 and 171,012,704.40

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Solution

The fourth proportional to 287,238,851.10, 430,858,276.65 and 171,012,704.40 is: 256,519,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,238,851.10 : 430,858,276.65 = 171,012,704.40 : x
  2. Step 2: Convert to fraction form
    287,238,851.10/430,858,276.65 = 171,012,704.40/x
  3. Step 3: Cross multiply
    287,238,851.10x = 430,858,276.65 × 171,012,704.40
  4. Step 4: Simplify right side
    287,238,851.10x = 73,682,239,103,039,872
  5. Step 5: Solve for x
    x = 73,682,239,103,039,872/287,238,851.10
  6. Step 6: Final answer
    x = 256,519,056.60

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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.