Home / 562,470,388.64-776,215,344.16-311,578,623.44

Finding the Fourth Proportional to 562,470,388.64, 776,215,344.16 and 311,578,623.44

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Solution

The fourth proportional to 562,470,388.64, 776,215,344.16 and 311,578,623.44 is: 429,981,939.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,470,388.64 : 776,215,344.16 = 311,578,623.44 : x
  2. Step 2: Convert to fraction form
    562,470,388.64/776,215,344.16 = 311,578,623.44/x
  3. Step 3: Cross multiply
    562,470,388.64x = 776,215,344.16 × 311,578,623.44
  4. Step 4: Simplify right side
    562,470,388.64x = 241,852,108,426,378,624
  5. Step 5: Solve for x
    x = 241,852,108,426,378,624/562,470,388.64
  6. Step 6: Final answer
    x = 429,981,939.16

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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.