Home / 28,371,868.60-42,563,780.70-9,201,130.82

Finding the Fourth Proportional to 28,371,868.60, 42,563,780.70 and 9,201,130.82

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Solution

The fourth proportional to 28,371,868.60, 42,563,780.70 and 9,201,130.82 is: 13,803,634.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,868.60 : 42,563,780.70 = 9,201,130.82 : x
  2. Step 2: Convert to fraction form
    28,371,868.60/42,563,780.70 = 9,201,130.82/x
  3. Step 3: Cross multiply
    28,371,868.60x = 42,563,780.70 × 9,201,130.82
  4. Step 4: Simplify right side
    28,371,868.60x = 391,634,914,414,491.19
  5. Step 5: Solve for x
    x = 391,634,914,414,491.19/28,371,868.60
  6. Step 6: Final answer
    x = 13,803,634.86

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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.