Home / 9,139,899.80-12,613,035.48-5,065,518.80

Finding the Fourth Proportional to 9,139,899.80, 12,613,035.48 and 5,065,518.80

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Solution

The fourth proportional to 9,139,899.80, 12,613,035.48 and 5,065,518.80 is: 6,990,401.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139,899.80 : 12,613,035.48 = 5,065,518.80 : x
  2. Step 2: Convert to fraction form
    9,139,899.80/12,613,035.48 = 5,065,518.80/x
  3. Step 3: Cross multiply
    9,139,899.80x = 12,613,035.48 × 5,065,518.80
  4. Step 4: Simplify right side
    9,139,899.80x = 63,891,568,349,007.02
  5. Step 5: Solve for x
    x = 63,891,568,349,007.02/9,139,899.80
  6. Step 6: Final answer
    x = 6,990,401.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.