Home / 538,892,101.95-743,666,769.03-312,852,059.75

Finding the Fourth Proportional to 538,892,101.95, 743,666,769.03 and 312,852,059.75

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Solution

The fourth proportional to 538,892,101.95, 743,666,769.03 and 312,852,059.75 is: 431,733,327.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,892,101.95 : 743,666,769.03 = 312,852,059.75 : x
  2. Step 2: Convert to fraction form
    538,892,101.95/743,666,769.03 = 312,852,059.75/x
  3. Step 3: Cross multiply
    538,892,101.95x = 743,666,769.03 × 312,852,059.75
  4. Step 4: Simplify right side
    538,892,101.95x = 232,657,680,454,944,672
  5. Step 5: Solve for x
    x = 232,657,680,454,944,672/538,892,101.95
  6. Step 6: Final answer
    x = 431,733,327.72

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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.