Home / 12,865,919.60-17,754,161.64-7,064,660.72

Finding the Fourth Proportional to 12,865,919.60, 17,754,161.64 and 7,064,660.72

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Solution

The fourth proportional to 12,865,919.60, 17,754,161.64 and 7,064,660.72 is: 9,748,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,865,919.60 : 17,754,161.64 = 7,064,660.72 : x
  2. Step 2: Convert to fraction form
    12,865,919.60/17,754,161.64 = 7,064,660.72/x
  3. Step 3: Cross multiply
    12,865,919.60x = 17,754,161.64 × 7,064,660.72
  4. Step 4: Simplify right side
    12,865,919.60x = 125,427,128,354,638.78
  5. Step 5: Solve for x
    x = 125,427,128,354,638.78/12,865,919.60
  6. Step 6: Final answer
    x = 9,748,788.45

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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.