Home / 28,758,697.38-43,138,931.80-12,576,318.93

Finding the Fourth Proportional to 28,758,697.38, 43,138,931.80 and 12,576,318.93

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Solution

The fourth proportional to 28,758,697.38, 43,138,931.80 and 12,576,318.93 is: 18,864,865.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758,697.38 : 43,138,931.80 = 12,576,318.93 : x
  2. Step 2: Convert to fraction form
    28,758,697.38/43,138,931.80 = 12,576,318.93/x
  3. Step 3: Cross multiply
    28,758,697.38x = 43,138,931.80 × 12,576,318.93
  4. Step 4: Simplify right side
    28,758,697.38x = 542,528,964,616,318.94
  5. Step 5: Solve for x
    x = 542,528,964,616,318.94/28,758,697.38
  6. Step 6: Final answer
    x = 18,864,865.73

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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.