Home / 331,278,220.78-496,863,430.49-156,400,916.72

Finding the Fourth Proportional to 331,278,220.78, 496,863,430.49 and 156,400,916.72

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Solution

The fourth proportional to 331,278,220.78, 496,863,430.49 and 156,400,916.72 is: 234,575,927.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,278,220.78 : 496,863,430.49 = 156,400,916.72 : x
  2. Step 2: Convert to fraction form
    331,278,220.78/496,863,430.49 = 156,400,916.72/x
  3. Step 3: Cross multiply
    331,278,220.78x = 496,863,430.49 × 156,400,916.72
  4. Step 4: Simplify right side
    331,278,220.78x = 77,709,896,011,186,688
  5. Step 5: Solve for x
    x = 77,709,896,011,186,688/331,278,220.78
  6. Step 6: Final answer
    x = 234,575,927.84

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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.