Home / 189,563,345.70-284,376,511.35-74,551,640.10

Finding the Fourth Proportional to 189,563,345.70, 284,376,511.35 and 74,551,640.10

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Solution

The fourth proportional to 189,563,345.70, 284,376,511.35 and 74,551,640.10 is: 111,839,845.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,563,345.70 : 284,376,511.35 = 74,551,640.10 : x
  2. Step 2: Convert to fraction form
    189,563,345.70/284,376,511.35 = 74,551,640.10/x
  3. Step 3: Cross multiply
    189,563,345.70x = 284,376,511.35 × 74,551,640.10
  4. Step 4: Simplify right side
    189,563,345.70x = 21,200,735,327,058,764
  5. Step 5: Solve for x
    x = 21,200,735,327,058,764/189,563,345.70
  6. Step 6: Final answer
    x = 111,839,845.67

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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.