Home / 538,289,426.75-807,434,141.20-129,345,577.79

Finding the Fourth Proportional to 538,289,426.75, 807,434,141.20 and 129,345,577.79

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Solution

The fourth proportional to 538,289,426.75, 807,434,141.20 and 129,345,577.79 is: 194,018,366.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,289,426.75 : 807,434,141.20 = 129,345,577.79 : x
  2. Step 2: Convert to fraction form
    538,289,426.75/807,434,141.20 = 129,345,577.79/x
  3. Step 3: Cross multiply
    538,289,426.75x = 807,434,141.20 × 129,345,577.79
  4. Step 4: Simplify right side
    538,289,426.75x = 104,438,035,516,525,904
  5. Step 5: Solve for x
    x = 104,438,035,516,525,904/538,289,426.75
  6. Step 6: Final answer
    x = 194,018,366.94

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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.