Home / 28,371,866.59-42,563,777.69-9,201,128.82

Finding the Fourth Proportional to 28,371,866.59, 42,563,777.69 and 9,201,128.82

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Solution

The fourth proportional to 28,371,866.59, 42,563,777.69 and 9,201,128.82 is: 13,803,631.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,866.59 : 42,563,777.69 = 9,201,128.82 : x
  2. Step 2: Convert to fraction form
    28,371,866.59/42,563,777.69 = 9,201,128.82/x
  3. Step 3: Cross multiply
    28,371,866.59x = 42,563,777.69 × 9,201,128.82
  4. Step 4: Simplify right side
    28,371,866.59x = 391,634,801,591,532
  5. Step 5: Solve for x
    x = 391,634,801,591,532/28,371,866.59
  6. Step 6: Final answer
    x = 13,803,631.86

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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.