Home / 518,077,478.48-777,031,096.03-186,015,747.74

Finding the Fourth Proportional to 518,077,478.48, 777,031,096.03 and 186,015,747.74

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Solution

The fourth proportional to 518,077,478.48, 777,031,096.03 and 186,015,747.74 is: 278,993,058.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,077,478.48 : 777,031,096.03 = 186,015,747.74 : x
  2. Step 2: Convert to fraction form
    518,077,478.48/777,031,096.03 = 186,015,747.74/x
  3. Step 3: Cross multiply
    518,077,478.48x = 777,031,096.03 × 186,015,747.74
  4. Step 4: Simplify right side
    518,077,478.48x = 144,540,020,340,902,016
  5. Step 5: Solve for x
    x = 144,540,020,340,902,016/518,077,478.48
  6. Step 6: Final answer
    x = 278,993,058.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.