Home / 7,770,036.90-11,655,055.35-3,990,900.90

Finding the Fourth Proportional to 7,770,036.90, 11,655,055.35 and 3,990,900.90

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Solution

The fourth proportional to 7,770,036.90, 11,655,055.35 and 3,990,900.90 is: 5,986,351.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770,036.90 : 11,655,055.35 = 3,990,900.90 : x
  2. Step 2: Convert to fraction form
    7,770,036.90/11,655,055.35 = 3,990,900.90/x
  3. Step 3: Cross multiply
    7,770,036.90x = 11,655,055.35 × 3,990,900.90
  4. Step 4: Simplify right side
    7,770,036.90x = 46,514,170,885,864.81
  5. Step 5: Solve for x
    x = 46,514,170,885,864.81/7,770,036.90
  6. Step 6: Final answer
    x = 5,986,351.35

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Double scale
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Similar ratio
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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.