Home / 217,618,688.80-326,428,033.20-74,011,520.80

Finding the Fourth Proportional to 217,618,688.80, 326,428,033.20 and 74,011,520.80

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Solution

The fourth proportional to 217,618,688.80, 326,428,033.20 and 74,011,520.80 is: 111,017,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,618,688.80 : 326,428,033.20 = 74,011,520.80 : x
  2. Step 2: Convert to fraction form
    217,618,688.80/326,428,033.20 = 74,011,520.80/x
  3. Step 3: Cross multiply
    217,618,688.80x = 326,428,033.20 × 74,011,520.80
  4. Step 4: Simplify right side
    217,618,688.80x = 24,159,435,168,884,888
  5. Step 5: Solve for x
    x = 24,159,435,168,884,888/217,618,688.80
  6. Step 6: Final answer
    x = 111,017,281.20

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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.