Home / 538,289,527.31-807,434,290.07-129,345,677.81

Finding the Fourth Proportional to 538,289,527.31, 807,434,290.07 and 129,345,677.81

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Solution

The fourth proportional to 538,289,527.31, 807,434,290.07 and 129,345,677.81 is: 194,018,516.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,289,527.31 : 807,434,290.07 = 129,345,677.81 : x
  2. Step 2: Convert to fraction form
    538,289,527.31/807,434,290.07 = 129,345,677.81/x
  3. Step 3: Cross multiply
    538,289,527.31x = 807,434,290.07 × 129,345,677.81
  4. Step 4: Simplify right side
    538,289,527.31x = 104,438,135,537,512,160
  5. Step 5: Solve for x
    x = 104,438,135,537,512,160/538,289,527.31
  6. Step 6: Final answer
    x = 194,018,516.50

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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.