Home / 43,987,320.80-65,980,981.20-38,318,616.80

Finding the Fourth Proportional to 43,987,320.80, 65,980,981.20 and 38,318,616.80

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Solution

The fourth proportional to 43,987,320.80, 65,980,981.20 and 38,318,616.80 is: 57,477,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,987,320.80 : 65,980,981.20 = 38,318,616.80 : x
  2. Step 2: Convert to fraction form
    43,987,320.80/65,980,981.20 = 38,318,616.80/x
  3. Step 3: Cross multiply
    43,987,320.80x = 65,980,981.20 × 38,318,616.80
  4. Step 4: Simplify right side
    43,987,320.80x = 2,528,299,934,690,804
  5. Step 5: Solve for x
    x = 2,528,299,934,690,804/43,987,320.80
  6. Step 6: Final answer
    x = 57,477,925.20

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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.