Home / 208,318,827.60-312,528,007.80-100,524,805.20

Finding the Fourth Proportional to 208,318,827.60, 312,528,007.80 and 100,524,805.20

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Solution

The fourth proportional to 208,318,827.60, 312,528,007.80 and 100,524,805.20 is: 150,811,222.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,318,827.60 : 312,528,007.80 = 100,524,805.20 : x
  2. Step 2: Convert to fraction form
    208,318,827.60/312,528,007.80 = 100,524,805.20/x
  3. Step 3: Cross multiply
    208,318,827.60x = 312,528,007.80 × 100,524,805.20
  4. Step 4: Simplify right side
    208,318,827.60x = 31,416,817,103,639,084
  5. Step 5: Solve for x
    x = 31,416,817,103,639,084/208,318,827.60
  6. Step 6: Final answer
    x = 150,811,222.71

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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.