Home / 90,816,097.20-136,224,145.80-47,668,628.40

Finding the Fourth Proportional to 90,816,097.20, 136,224,145.80 and 47,668,628.40

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Solution

The fourth proportional to 90,816,097.20, 136,224,145.80 and 47,668,628.40 is: 71,502,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,816,097.20 : 136,224,145.80 = 47,668,628.40 : x
  2. Step 2: Convert to fraction form
    90,816,097.20/136,224,145.80 = 47,668,628.40/x
  3. Step 3: Cross multiply
    90,816,097.20x = 136,224,145.80 × 47,668,628.40
  4. Step 4: Simplify right side
    90,816,097.20x = 6,493,618,185,247,621
  5. Step 5: Solve for x
    x = 6,493,618,185,247,621/90,816,097.20
  6. Step 6: Final answer
    x = 71,502,942.60

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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.