Home / 631,511,629.60-947,195,082.08-165,218,068.32

Finding the Fourth Proportional to 631,511,629.60, 947,195,082.08 and 165,218,068.32

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Solution

The fourth proportional to 631,511,629.60, 947,195,082.08 and 165,218,068.32 is: 247,808,170.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,511,629.60 : 947,195,082.08 = 165,218,068.32 : x
  2. Step 2: Convert to fraction form
    631,511,629.60/947,195,082.08 = 165,218,068.32/x
  3. Step 3: Cross multiply
    631,511,629.60x = 947,195,082.08 × 165,218,068.32
  4. Step 4: Simplify right side
    631,511,629.60x = 156,493,741,783,461,440
  5. Step 5: Solve for x
    x = 156,493,741,783,461,440/631,511,629.60
  6. Step 6: Final answer
    x = 247,808,170.82

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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.