Home / 28,201,671.60-42,302,507.40-18,614,807.70

Finding the Fourth Proportional to 28,201,671.60, 42,302,507.40 and 18,614,807.70

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Solution

The fourth proportional to 28,201,671.60, 42,302,507.40 and 18,614,807.70 is: 27,922,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,201,671.60 : 42,302,507.40 = 18,614,807.70 : x
  2. Step 2: Convert to fraction form
    28,201,671.60/42,302,507.40 = 18,614,807.70/x
  3. Step 3: Cross multiply
    28,201,671.60x = 42,302,507.40 × 18,614,807.70
  4. Step 4: Simplify right side
    28,201,671.60x = 787,453,040,478,826.88
  5. Step 5: Solve for x
    x = 787,453,040,478,826.88/28,201,671.60
  6. Step 6: Final answer
    x = 27,922,211.55

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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.