Home / 8,404,288.20-12,578,438.70-7,396,518.60

Finding the Fourth Proportional to 8,404,288.20, 12,578,438.70 and 7,396,518.60

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Solution

The fourth proportional to 8,404,288.20, 12,578,438.70 and 7,396,518.60 is: 11,070,141.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,404,288.20 : 12,578,438.70 = 7,396,518.60 : x
  2. Step 2: Convert to fraction form
    8,404,288.20/12,578,438.70 = 7,396,518.60/x
  3. Step 3: Cross multiply
    8,404,288.20x = 12,578,438.70 × 7,396,518.60
  4. Step 4: Simplify right side
    8,404,288.20x = 93,036,655,803,509.81
  5. Step 5: Solve for x
    x = 93,036,655,803,509.81/8,404,288.20
  6. Step 6: Final answer
    x = 11,070,141.05

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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.