Home / 503,514,340.43-755,352,222.48-212,424,340.32

Finding the Fourth Proportional to 503,514,340.43, 755,352,222.48 and 212,424,340.32

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Solution

The fourth proportional to 503,514,340.43, 755,352,222.48 and 212,424,340.32 is: 318,670,561.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,514,340.43 : 755,352,222.48 = 212,424,340.32 : x
  2. Step 2: Convert to fraction form
    503,514,340.43/755,352,222.48 = 212,424,340.32/x
  3. Step 3: Cross multiply
    503,514,340.43x = 755,352,222.48 × 212,424,340.32
  4. Step 4: Simplify right side
    503,514,340.43x = 160,455,197,569,559,872
  5. Step 5: Solve for x
    x = 160,455,197,569,559,872/503,514,340.43
  6. Step 6: Final answer
    x = 318,670,561.47

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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.