Home / 178,413,903.21-267,633,753.69-74,678,779.06

Finding the Fourth Proportional to 178,413,903.21, 267,633,753.69 and 74,678,779.06

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Solution

The fourth proportional to 178,413,903.21, 267,633,753.69 and 74,678,779.06 is: 112,023,567.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,413,903.21 : 267,633,753.69 = 74,678,779.06 : x
  2. Step 2: Convert to fraction form
    178,413,903.21/267,633,753.69 = 74,678,779.06/x
  3. Step 3: Cross multiply
    178,413,903.21x = 267,633,753.69 × 74,678,779.06
  4. Step 4: Simplify right side
    178,413,903.21x = 19,986,561,960,440,576
  5. Step 5: Solve for x
    x = 19,986,561,960,440,576/178,413,903.21
  6. Step 6: Final answer
    x = 112,023,567.68

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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.