Home / 12,947,715.60-19,406,021.40-5,370,781.20

Finding the Fourth Proportional to 12,947,715.60, 19,406,021.40 and 5,370,781.20

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Solution

The fourth proportional to 12,947,715.60, 19,406,021.40 and 5,370,781.20 is: 8,049,720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,715.60 : 19,406,021.40 = 5,370,781.20 : x
  2. Step 2: Convert to fraction form
    12,947,715.60/19,406,021.40 = 5,370,781.20/x
  3. Step 3: Cross multiply
    12,947,715.60x = 19,406,021.40 × 5,370,781.20
  4. Step 4: Simplify right side
    12,947,715.60x = 104,225,494,901,917.67
  5. Step 5: Solve for x
    x = 104,225,494,901,917.67/12,947,715.60
  6. Step 6: Final answer
    x = 8,049,720.75

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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.