Home / 12,913,899.28-17,821,181.33-7,112,681.02

Finding the Fourth Proportional to 12,913,899.28, 17,821,181.33 and 7,112,681.02

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Solution

The fourth proportional to 12,913,899.28, 17,821,181.33 and 7,112,681.02 is: 9,815,499.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913,899.28 : 17,821,181.33 = 7,112,681.02 : x
  2. Step 2: Convert to fraction form
    12,913,899.28/17,821,181.33 = 7,112,681.02/x
  3. Step 3: Cross multiply
    12,913,899.28x = 17,821,181.33 × 7,112,681.02
  4. Step 4: Simplify right side
    12,913,899.28x = 126,756,378,173,140.45
  5. Step 5: Solve for x
    x = 126,756,378,173,140.45/12,913,899.28
  6. Step 6: Final answer
    x = 9,815,499.98

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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.