Home / 313,278,313.08-432,331,272.54-172,158,307.20

Finding the Fourth Proportional to 313,278,313.08, 432,331,272.54 and 172,158,307.20

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Solution

The fourth proportional to 313,278,313.08, 432,331,272.54 and 172,158,307.20 is: 237,582,420.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,278,313.08 : 432,331,272.54 = 172,158,307.20 : x
  2. Step 2: Convert to fraction form
    313,278,313.08/432,331,272.54 = 172,158,307.20/x
  3. Step 3: Cross multiply
    313,278,313.08x = 432,331,272.54 × 172,158,307.20
  4. Step 4: Simplify right side
    313,278,313.08x = 74,429,420,030,108,240
  5. Step 5: Solve for x
    x = 74,429,420,030,108,240/313,278,313.08
  6. Step 6: Final answer
    x = 237,582,420.88

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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.