Home / 39,143,813.80-58,715,720.70-28,338,284.20

Finding the Fourth Proportional to 39,143,813.80, 58,715,720.70 and 28,338,284.20

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Solution

The fourth proportional to 39,143,813.80, 58,715,720.70 and 28,338,284.20 is: 42,507,426.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,143,813.80 : 58,715,720.70 = 28,338,284.20 : x
  2. Step 2: Convert to fraction form
    39,143,813.80/58,715,720.70 = 28,338,284.20/x
  3. Step 3: Cross multiply
    39,143,813.80x = 58,715,720.70 × 28,338,284.20
  4. Step 4: Simplify right side
    39,143,813.80x = 1,663,902,780,204,423
  5. Step 5: Solve for x
    x = 1,663,902,780,204,423/39,143,813.80
  6. Step 6: Final answer
    x = 42,507,426.30

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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.