Home / 30,718,328.28-42,391,437.37-16,779,876.42

Finding the Fourth Proportional to 30,718,328.28, 42,391,437.37 and 16,779,876.42

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Solution

The fourth proportional to 30,718,328.28, 42,391,437.37 and 16,779,876.42 is: 23,156,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,718,328.28 : 42,391,437.37 = 16,779,876.42 : x
  2. Step 2: Convert to fraction form
    30,718,328.28/42,391,437.37 = 16,779,876.42/x
  3. Step 3: Cross multiply
    30,718,328.28x = 42,391,437.37 × 16,779,876.42
  4. Step 4: Simplify right side
    30,718,328.28x = 711,323,080,189,726.88
  5. Step 5: Solve for x
    x = 711,323,080,189,726.88/30,718,328.28
  6. Step 6: Final answer
    x = 23,156,308.30

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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.