Home / 18,871,066.29-28,269,606.09-9,779,127.96

Finding the Fourth Proportional to 18,871,066.29, 28,269,606.09 and 9,779,127.96

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Solution

The fourth proportional to 18,871,066.29, 28,269,606.09 and 9,779,127.96 is: 14,649,521.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871,066.29 : 28,269,606.09 = 9,779,127.96 : x
  2. Step 2: Convert to fraction form
    18,871,066.29/28,269,606.09 = 9,779,127.96/x
  3. Step 3: Cross multiply
    18,871,066.29x = 28,269,606.09 × 9,779,127.96
  4. Step 4: Simplify right side
    18,871,066.29x = 276,452,095,332,905.31
  5. Step 5: Solve for x
    x = 276,452,095,332,905.31/18,871,066.29
  6. Step 6: Final answer
    x = 14,649,521.71

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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.