Home / 85,678,076.24-128,535,551.33-26,589,289.67

Finding the Fourth Proportional to 85,678,076.24, 128,535,551.33 and 26,589,289.67

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Solution

The fourth proportional to 85,678,076.24, 128,535,551.33 and 26,589,289.67 is: 39,889,656.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,678,076.24 : 128,535,551.33 = 26,589,289.67 : x
  2. Step 2: Convert to fraction form
    85,678,076.24/128,535,551.33 = 26,589,289.67/x
  3. Step 3: Cross multiply
    85,678,076.24x = 128,535,551.33 × 26,589,289.67
  4. Step 4: Simplify right side
    85,678,076.24x = 3,417,669,007,206,524
  5. Step 5: Solve for x
    x = 3,417,669,007,206,524/85,678,076.24
  6. Step 6: Final answer
    x = 39,889,656.22

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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.