Home / 20,803,870.40-31,205,902.80-7,340,698.40

Finding the Fourth Proportional to 20,803,870.40, 31,205,902.80 and 7,340,698.40

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Solution

The fourth proportional to 20,803,870.40, 31,205,902.80 and 7,340,698.40 is: 11,011,081.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803,870.40 : 31,205,902.80 = 7,340,698.40 : x
  2. Step 2: Convert to fraction form
    20,803,870.40/31,205,902.80 = 7,340,698.40/x
  3. Step 3: Cross multiply
    20,803,870.40x = 31,205,902.80 × 7,340,698.40
  4. Step 4: Simplify right side
    20,803,870.40x = 229,073,120,754,515.53
  5. Step 5: Solve for x
    x = 229,073,120,754,515.53/20,803,870.40
  6. Step 6: Final answer
    x = 11,011,081.90

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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.