Home / 509,083,152.52-702,514,973.80-311,176,012.36

Finding the Fourth Proportional to 509,083,152.52, 702,514,973.80 and 311,176,012.36

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Solution

The fourth proportional to 509,083,152.52, 702,514,973.80 and 311,176,012.36 is: 429,410,808.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,083,152.52 : 702,514,973.80 = 311,176,012.36 : x
  2. Step 2: Convert to fraction form
    509,083,152.52/702,514,973.80 = 311,176,012.36/x
  3. Step 3: Cross multiply
    509,083,152.52x = 702,514,973.80 × 311,176,012.36
  4. Step 4: Simplify right side
    509,083,152.52x = 218,605,808,170,273,856
  5. Step 5: Solve for x
    x = 218,605,808,170,273,856/509,083,152.52
  6. Step 6: Final answer
    x = 429,410,808.60

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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.