Home / 538,289,426.37-807,434,140.64-129,345,577.41

Finding the Fourth Proportional to 538,289,426.37, 807,434,140.64 and 129,345,577.41

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Solution

The fourth proportional to 538,289,426.37, 807,434,140.64 and 129,345,577.41 is: 194,018,366.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,289,426.37 : 807,434,140.64 = 129,345,577.41 : x
  2. Step 2: Convert to fraction form
    538,289,426.37/807,434,140.64 = 129,345,577.41/x
  3. Step 3: Cross multiply
    538,289,426.37x = 807,434,140.64 × 129,345,577.41
  4. Step 4: Simplify right side
    538,289,426.37x = 104,438,035,140,981,216
  5. Step 5: Solve for x
    x = 104,438,035,140,981,216/538,289,426.37
  6. Step 6: Final answer
    x = 194,018,366.37

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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.