Home / 85,678,077.24-128,535,552.83-26,589,290.67

Finding the Fourth Proportional to 85,678,077.24, 128,535,552.83 and 26,589,290.67

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Solution

The fourth proportional to 85,678,077.24, 128,535,552.83 and 26,589,290.67 is: 39,889,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,678,077.24 : 128,535,552.83 = 26,589,290.67 : x
  2. Step 2: Convert to fraction form
    85,678,077.24/128,535,552.83 = 26,589,290.67/x
  3. Step 3: Cross multiply
    85,678,077.24x = 128,535,552.83 × 26,589,290.67
  4. Step 4: Simplify right side
    85,678,077.24x = 3,417,669,175,493,065
  5. Step 5: Solve for x
    x = 3,417,669,175,493,065/85,678,077.24
  6. Step 6: Final answer
    x = 39,889,657.72

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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.