Home / 18,732,860.78-28,103,302.02-5,603,309.86

Finding the Fourth Proportional to 18,732,860.78, 28,103,302.02 and 5,603,309.86

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Solution

The fourth proportional to 18,732,860.78, 28,103,302.02 and 5,603,309.86 is: 8,406,164.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732,860.78 : 28,103,302.02 = 5,603,309.86 : x
  2. Step 2: Convert to fraction form
    18,732,860.78/28,103,302.02 = 5,603,309.86/x
  3. Step 3: Cross multiply
    18,732,860.78x = 28,103,302.02 × 5,603,309.86
  4. Step 4: Simplify right side
    18,732,860.78x = 157,471,509,307,223.94
  5. Step 5: Solve for x
    x = 157,471,509,307,223.94/18,732,860.78
  6. Step 6: Final answer
    x = 8,406,164.50

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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.