Home / 30,891,834.03-42,627,913.42-18,330,724.30

Finding the Fourth Proportional to 30,891,834.03, 42,627,913.42 and 18,330,724.30

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Solution

The fourth proportional to 30,891,834.03, 42,627,913.42 and 18,330,724.30 is: 25,294,727.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,891,834.03 : 42,627,913.42 = 18,330,724.30 : x
  2. Step 2: Convert to fraction form
    30,891,834.03/42,627,913.42 = 18,330,724.30/x
  3. Step 3: Cross multiply
    30,891,834.03x = 42,627,913.42 × 18,330,724.30
  4. Step 4: Simplify right side
    30,891,834.03x = 781,400,528,386,290.12
  5. Step 5: Solve for x
    x = 781,400,528,386,290.12/30,891,834.03
  6. Step 6: Final answer
    x = 25,294,727.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.