Home / 159,586,511.22-239,448,895.47-85,724,105.67

Finding the Fourth Proportional to 159,586,511.22, 239,448,895.47 and 85,724,105.67

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Solution

The fourth proportional to 159,586,511.22, 239,448,895.47 and 85,724,105.67 is: 128,623,291.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,586,511.22 : 239,448,895.47 = 85,724,105.67 : x
  2. Step 2: Convert to fraction form
    159,586,511.22/239,448,895.47 = 85,724,105.67/x
  3. Step 3: Cross multiply
    159,586,511.22x = 239,448,895.47 × 85,724,105.67
  4. Step 4: Simplify right side
    159,586,511.22x = 20,526,542,417,835,064
  5. Step 5: Solve for x
    x = 20,526,542,417,835,064/159,586,511.22
  6. Step 6: Final answer
    x = 128,623,291.91

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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.