Home / 12,455,657.86-18,690,865.36-5,266,797.70

Finding the Fourth Proportional to 12,455,657.86, 18,690,865.36 and 5,266,797.70

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Solution

The fourth proportional to 12,455,657.86, 18,690,865.36 and 5,266,797.70 is: 7,903,316.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,657.86 : 18,690,865.36 = 5,266,797.70 : x
  2. Step 2: Convert to fraction form
    12,455,657.86/18,690,865.36 = 5,266,797.70/x
  3. Step 3: Cross multiply
    12,455,657.86x = 18,690,865.36 × 5,266,797.70
  4. Step 4: Simplify right side
    12,455,657.86x = 98,441,006,689,057.67
  5. Step 5: Solve for x
    x = 98,441,006,689,057.67/12,455,657.86
  6. Step 6: Final answer
    x = 7,903,316.53

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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.