Home / 7,168,771.76-9,892,875.16-3,905,576.32

Finding the Fourth Proportional to 7,168,771.76, 9,892,875.16 and 3,905,576.32

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Solution

The fourth proportional to 7,168,771.76, 9,892,875.16 and 3,905,576.32 is: 5,389,679.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168,771.76 : 9,892,875.16 = 3,905,576.32 : x
  2. Step 2: Convert to fraction form
    7,168,771.76/9,892,875.16 = 3,905,576.32/x
  3. Step 3: Cross multiply
    7,168,771.76x = 9,892,875.16 × 3,905,576.32
  4. Step 4: Simplify right side
    7,168,771.76x = 38,637,378,961,612.21
  5. Step 5: Solve for x
    x = 38,637,378,961,612.21/7,168,771.76
  6. Step 6: Final answer
    x = 5,389,679.05

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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.