Home / 6,642,821.20-9,964,231.80-5,036,688.40

Finding the Fourth Proportional to 6,642,821.20, 9,964,231.80 and 5,036,688.40

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Solution

The fourth proportional to 6,642,821.20, 9,964,231.80 and 5,036,688.40 is: 7,555,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,821.20 : 9,964,231.80 = 5,036,688.40 : x
  2. Step 2: Convert to fraction form
    6,642,821.20/9,964,231.80 = 5,036,688.40/x
  3. Step 3: Cross multiply
    6,642,821.20x = 9,964,231.80 × 5,036,688.40
  4. Step 4: Simplify right side
    6,642,821.20x = 50,186,730,721,971.12
  5. Step 5: Solve for x
    x = 50,186,730,721,971.12/6,642,821.20
  6. Step 6: Final answer
    x = 7,555,032.60

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1.5x scale

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.