Home / 78,313,156.44-108,082,121.10-47,373,547.32

Finding the Fourth Proportional to 78,313,156.44, 108,082,121.10 and 47,373,547.32

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Solution

The fourth proportional to 78,313,156.44, 108,082,121.10 and 47,373,547.32 is: 65,381,523.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,313,156.44 : 108,082,121.10 = 47,373,547.32 : x
  2. Step 2: Convert to fraction form
    78,313,156.44/108,082,121.10 = 47,373,547.32/x
  3. Step 3: Cross multiply
    78,313,156.44x = 108,082,121.10 × 47,373,547.32
  4. Step 4: Simplify right side
    78,313,156.44x = 5,120,233,478,376,820
  5. Step 5: Solve for x
    x = 5,120,233,478,376,820/78,313,156.44
  6. Step 6: Final answer
    x = 65,381,523.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.