Home / 538,289,435.40-807,434,154.16-129,345,586.44

Finding the Fourth Proportional to 538,289,435.40, 807,434,154.16 and 129,345,586.44

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Solution

The fourth proportional to 538,289,435.40, 807,434,154.16 and 129,345,586.44 is: 194,018,379.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,289,435.40 : 807,434,154.16 = 129,345,586.44 : x
  2. Step 2: Convert to fraction form
    538,289,435.40/807,434,154.16 = 129,345,586.44/x
  3. Step 3: Cross multiply
    538,289,435.40x = 807,434,154.16 × 129,345,586.44
  4. Step 4: Simplify right side
    538,289,435.40x = 104,438,044,181,510,560
  5. Step 5: Solve for x
    x = 104,438,044,181,510,560/538,289,435.40
  6. Step 6: Final answer
    x = 194,018,379.91

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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.