Home / 86,613,631.02-119,486,744.75-76,700,616.12

Finding the Fourth Proportional to 86,613,631.02, 119,486,744.75 and 76,700,616.12

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Solution

The fourth proportional to 86,613,631.02, 119,486,744.75 and 76,700,616.12 is: 105,811,369.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,613,631.02 : 119,486,744.75 = 76,700,616.12 : x
  2. Step 2: Convert to fraction form
    86,613,631.02/119,486,744.75 = 76,700,616.12/x
  3. Step 3: Cross multiply
    86,613,631.02x = 119,486,744.75 × 76,700,616.12
  4. Step 4: Simplify right side
    86,613,631.02x = 9,164,706,940,689,928
  5. Step 5: Solve for x
    x = 9,164,706,940,689,928/86,613,631.02
  6. Step 6: Final answer
    x = 105,811,369.79

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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.