Home / 12,615,384.87-18,853,958.55-9,210,849.15

Finding the Fourth Proportional to 12,615,384.87, 18,853,958.55 and 9,210,849.15

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Solution

The fourth proportional to 12,615,384.87, 18,853,958.55 and 9,210,849.15 is: 13,765,808.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615,384.87 : 18,853,958.55 = 9,210,849.15 : x
  2. Step 2: Convert to fraction form
    12,615,384.87/18,853,958.55 = 9,210,849.15/x
  3. Step 3: Cross multiply
    12,615,384.87x = 18,853,958.55 × 9,210,849.15
  4. Step 4: Simplify right side
    12,615,384.87x = 173,660,968,084,402.75
  5. Step 5: Solve for x
    x = 173,660,968,084,402.75/12,615,384.87
  6. Step 6: Final answer
    x = 13,765,808.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.