Home / 13,442,832.89-18,547,920.77-7,641,157.94

Finding the Fourth Proportional to 13,442,832.89, 18,547,920.77 and 7,641,157.94

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Solution

The fourth proportional to 13,442,832.89, 18,547,920.77 and 7,641,157.94 is: 10,542,985.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442,832.89 : 18,547,920.77 = 7,641,157.94 : x
  2. Step 2: Convert to fraction form
    13,442,832.89/18,547,920.77 = 7,641,157.94/x
  3. Step 3: Cross multiply
    13,442,832.89x = 18,547,920.77 × 7,641,157.94
  4. Step 4: Simplify right side
    13,442,832.89x = 141,727,591,931,231.03
  5. Step 5: Solve for x
    x = 141,727,591,931,231.03/13,442,832.89
  6. Step 6: Final answer
    x = 10,542,985.48

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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.