Home / 10,371,036.40-15,549,181.80-3,978,818.80

Finding the Fourth Proportional to 10,371,036.40, 15,549,181.80 and 3,978,818.80

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Solution

The fourth proportional to 10,371,036.40, 15,549,181.80 and 3,978,818.80 is: 5,965,399.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371,036.40 : 15,549,181.80 = 3,978,818.80 : x
  2. Step 2: Convert to fraction form
    10,371,036.40/15,549,181.80 = 3,978,818.80/x
  3. Step 3: Cross multiply
    10,371,036.40x = 15,549,181.80 × 3,978,818.80
  4. Step 4: Simplify right side
    10,371,036.40x = 61,867,376,870,457.84
  5. Step 5: Solve for x
    x = 61,867,376,870,457.84/10,371,036.40
  6. Step 6: Final answer
    x = 5,965,399.65

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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.