Home / 52,668,131.57-78,915,925.81-28,049,920.70

Finding the Fourth Proportional to 52,668,131.57, 78,915,925.81 and 28,049,920.70

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Solution

The fourth proportional to 52,668,131.57, 78,915,925.81 and 28,049,920.70 is: 42,028,934.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,668,131.57 : 78,915,925.81 = 28,049,920.70 : x
  2. Step 2: Convert to fraction form
    52,668,131.57/78,915,925.81 = 28,049,920.70/x
  3. Step 3: Cross multiply
    52,668,131.57x = 78,915,925.81 × 28,049,920.70
  4. Step 4: Simplify right side
    52,668,131.57x = 2,213,585,461,064,748.50
  5. Step 5: Solve for x
    x = 2,213,585,461,064,748.50/52,668,131.57
  6. Step 6: Final answer
    x = 42,028,934.68

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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.