Home / 13,402,815.70-20,104,223.55-5,317,719.70

Finding the Fourth Proportional to 13,402,815.70, 20,104,223.55 and 5,317,719.70

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Solution

The fourth proportional to 13,402,815.70, 20,104,223.55 and 5,317,719.70 is: 7,976,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402,815.70 : 20,104,223.55 = 5,317,719.70 : x
  2. Step 2: Convert to fraction form
    13,402,815.70/20,104,223.55 = 5,317,719.70/x
  3. Step 3: Cross multiply
    13,402,815.70x = 20,104,223.55 × 5,317,719.70
  4. Step 4: Simplify right side
    13,402,815.70x = 106,908,625,625,038.94
  5. Step 5: Solve for x
    x = 106,908,625,625,038.94/13,402,815.70
  6. Step 6: Final answer
    x = 7,976,579.55

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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.