Home / 30,930,836.21-42,679,809.02-17,875,573.86

Finding the Fourth Proportional to 30,930,836.21, 42,679,809.02 and 17,875,573.86

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Solution

The fourth proportional to 30,930,836.21, 42,679,809.02 and 17,875,573.86 is: 24,665,549.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,930,836.21 : 42,679,809.02 = 17,875,573.86 : x
  2. Step 2: Convert to fraction form
    30,930,836.21/42,679,809.02 = 17,875,573.86/x
  3. Step 3: Cross multiply
    30,930,836.21x = 42,679,809.02 × 17,875,573.86
  4. Step 4: Simplify right side
    30,930,836.21x = 762,926,078,672,442.38
  5. Step 5: Solve for x
    x = 762,926,078,672,442.38/30,930,836.21
  6. Step 6: Final answer
    x = 24,665,549.73

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1.5x scale

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.