Home / 12,785,421.27-19,178,000.64-7,390,639.02

Finding the Fourth Proportional to 12,785,421.27, 19,178,000.64 and 7,390,639.02

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Solution

The fourth proportional to 12,785,421.27, 19,178,000.64 and 7,390,639.02 is: 11,085,882.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785,421.27 : 19,178,000.64 = 7,390,639.02 : x
  2. Step 2: Convert to fraction form
    12,785,421.27/19,178,000.64 = 7,390,639.02/x
  3. Step 3: Cross multiply
    12,785,421.27x = 19,178,000.64 × 7,390,639.02
  4. Step 4: Simplify right side
    12,785,421.27x = 141,737,679,855,568.97
  5. Step 5: Solve for x
    x = 141,737,679,855,568.97/12,785,421.27
  6. Step 6: Final answer
    x = 11,085,882.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.