Home / 309,301,630.64-426,440,018.76-253,340,894.96

Finding the Fourth Proportional to 309,301,630.64, 426,440,018.76 and 253,340,894.96

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Solution

The fourth proportional to 309,301,630.64, 426,440,018.76 and 253,340,894.96 is: 349,285,892.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,301,630.64 : 426,440,018.76 = 253,340,894.96 : x
  2. Step 2: Convert to fraction form
    309,301,630.64/426,440,018.76 = 253,340,894.96/x
  3. Step 3: Cross multiply
    309,301,630.64x = 426,440,018.76 × 253,340,894.96
  4. Step 4: Simplify right side
    309,301,630.64x = 108,034,695,999,417,584
  5. Step 5: Solve for x
    x = 108,034,695,999,417,584/309,301,630.64
  6. Step 6: Final answer
    x = 349,285,892.14

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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.