Home / 562,815,207.75-776,685,060.32-311,935,796.45

Finding the Fourth Proportional to 562,815,207.75, 776,685,060.32 and 311,935,796.45

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Solution

The fourth proportional to 562,815,207.75, 776,685,060.32 and 311,935,796.45 is: 430,471,439.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,815,207.75 : 776,685,060.32 = 311,935,796.45 : x
  2. Step 2: Convert to fraction form
    562,815,207.75/776,685,060.32 = 311,935,796.45/x
  3. Step 3: Cross multiply
    562,815,207.75x = 776,685,060.32 × 311,935,796.45
  4. Step 4: Simplify right side
    562,815,207.75x = 242,275,872,883,569,952
  5. Step 5: Solve for x
    x = 242,275,872,883,569,952/562,815,207.75
  6. Step 6: Final answer
    x = 430,471,439.91

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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.