Home / 42,805,626.31-64,229,434.67-20,088,370.63

Finding the Fourth Proportional to 42,805,626.31, 64,229,434.67 and 20,088,370.63

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Solution

The fourth proportional to 42,805,626.31, 64,229,434.67 and 20,088,370.63 is: 30,142,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,805,626.31 : 64,229,434.67 = 20,088,370.63 : x
  2. Step 2: Convert to fraction form
    42,805,626.31/64,229,434.67 = 20,088,370.63/x
  3. Step 3: Cross multiply
    42,805,626.31x = 64,229,434.67 × 20,088,370.63
  4. Step 4: Simplify right side
    42,805,626.31x = 1,290,264,689,006,331.75
  5. Step 5: Solve for x
    x = 1,290,264,689,006,331.75/42,805,626.31
  6. Step 6: Final answer
    x = 30,142,408.84

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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.