Home / 20,918,835.92-31,310,758.20-10,807,547.60

Finding the Fourth Proportional to 20,918,835.92, 31,310,758.20 and 10,807,547.60

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Solution

The fourth proportional to 20,918,835.92, 31,310,758.20 and 10,807,547.60 is: 16,176,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,918,835.92 : 31,310,758.20 = 10,807,547.60 : x
  2. Step 2: Convert to fraction form
    20,918,835.92/31,310,758.20 = 10,807,547.60/x
  3. Step 3: Cross multiply
    20,918,835.92x = 31,310,758.20 × 10,807,547.60
  4. Step 4: Simplify right side
    20,918,835.92x = 338,392,509,638,590.31
  5. Step 5: Solve for x
    x = 338,392,509,638,590.31/20,918,835.92
  6. Step 6: Final answer
    x = 16,176,450.30

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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.