Home / 2,918,657.80-4,377,986.70-1,858,400.20

Finding the Fourth Proportional to 2,918,657.80, 4,377,986.70 and 1,858,400.20

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Solution

The fourth proportional to 2,918,657.80, 4,377,986.70 and 1,858,400.20 is: 2,787,600.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,657.80 : 4,377,986.70 = 1,858,400.20 : x
  2. Step 2: Convert to fraction form
    2,918,657.80/4,377,986.70 = 1,858,400.20/x
  3. Step 3: Cross multiply
    2,918,657.80x = 4,377,986.70 × 1,858,400.20
  4. Step 4: Simplify right side
    2,918,657.80x = 8,136,051,358,877.34
  5. Step 5: Solve for x
    x = 8,136,051,358,877.34/2,918,657.80
  6. Step 6: Final answer
    x = 2,787,600.30

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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.