Home / 18,926,588.34-28,390,520.39-5,280,067.98

Finding the Fourth Proportional to 18,926,588.34, 28,390,520.39 and 5,280,067.98

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Solution

The fourth proportional to 18,926,588.34, 28,390,520.39 and 5,280,067.98 is: 7,920,279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926,588.34 : 28,390,520.39 = 5,280,067.98 : x
  2. Step 2: Convert to fraction form
    18,926,588.34/28,390,520.39 = 5,280,067.98/x
  3. Step 3: Cross multiply
    18,926,588.34x = 28,390,520.39 × 5,280,067.98
  4. Step 4: Simplify right side
    18,926,588.34x = 149,903,877,646,776.12
  5. Step 5: Solve for x
    x = 149,903,877,646,776.12/18,926,588.34
  6. Step 6: Final answer
    x = 7,920,279.92

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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.