Home / 30,878,125.20-46,317,519.74-9,312,913.76

Finding the Fourth Proportional to 30,878,125.20, 46,317,519.74 and 9,312,913.76

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Solution

The fourth proportional to 30,878,125.20, 46,317,519.74 and 9,312,913.76 is: 13,969,470.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,878,125.20 : 46,317,519.74 = 9,312,913.76 : x
  2. Step 2: Convert to fraction form
    30,878,125.20/46,317,519.74 = 9,312,913.76/x
  3. Step 3: Cross multiply
    30,878,125.20x = 46,317,519.74 × 9,312,913.76
  4. Step 4: Simplify right side
    30,878,125.20x = 431,351,066,915,717.62
  5. Step 5: Solve for x
    x = 431,351,066,915,717.62/30,878,125.20
  6. Step 6: Final answer
    x = 13,969,470.75

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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.