Home / 638,432,117.10-957,648,175.65-178,369,548.30

Finding the Fourth Proportional to 638,432,117.10, 957,648,175.65 and 178,369,548.30

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Solution

The fourth proportional to 638,432,117.10, 957,648,175.65 and 178,369,548.30 is: 267,554,322.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,432,117.10 : 957,648,175.65 = 178,369,548.30 : x
  2. Step 2: Convert to fraction form
    638,432,117.10/957,648,175.65 = 178,369,548.30/x
  3. Step 3: Cross multiply
    638,432,117.10x = 957,648,175.65 × 178,369,548.30
  4. Step 4: Simplify right side
    638,432,117.10x = 170,815,272,521,009,568
  5. Step 5: Solve for x
    x = 170,815,272,521,009,568/638,432,117.10
  6. Step 6: Final answer
    x = 267,554,322.45

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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.