Home / 12,720,797.60-19,103,314.80-6,748,829.60

Finding the Fourth Proportional to 12,720,797.60, 19,103,314.80 and 6,748,829.60

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Solution

The fourth proportional to 12,720,797.60, 19,103,314.80 and 6,748,829.60 is: 10,134,978.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,720,797.60 : 19,103,314.80 = 6,748,829.60 : x
  2. Step 2: Convert to fraction form
    12,720,797.60/19,103,314.80 = 6,748,829.60/x
  3. Step 3: Cross multiply
    12,720,797.60x = 19,103,314.80 × 6,748,829.60
  4. Step 4: Simplify right side
    12,720,797.60x = 128,925,016,380,358.08
  5. Step 5: Solve for x
    x = 128,925,016,380,358.08/12,720,797.60
  6. Step 6: Final answer
    x = 10,134,978.99

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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.