Home / 7,035,891.20-10,553,836.80-6,643,980.80

Finding the Fourth Proportional to 7,035,891.20, 10,553,836.80 and 6,643,980.80

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Solution

The fourth proportional to 7,035,891.20, 10,553,836.80 and 6,643,980.80 is: 9,965,971.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,035,891.20 : 10,553,836.80 = 6,643,980.80 : x
  2. Step 2: Convert to fraction form
    7,035,891.20/10,553,836.80 = 6,643,980.80/x
  3. Step 3: Cross multiply
    7,035,891.20x = 10,553,836.80 × 6,643,980.80
  4. Step 4: Simplify right side
    7,035,891.20x = 70,119,489,065,533.45
  5. Step 5: Solve for x
    x = 70,119,489,065,533.45/7,035,891.20
  6. Step 6: Final answer
    x = 9,965,971.20

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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.