Home / 253,118,047.47-379,551,471.80-80,572,429.86

Finding the Fourth Proportional to 253,118,047.47, 379,551,471.80 and 80,572,429.86

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Solution

The fourth proportional to 253,118,047.47, 379,551,471.80 and 80,572,429.86 is: 120,818,664.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,118,047.47 : 379,551,471.80 = 80,572,429.86 : x
  2. Step 2: Convert to fraction form
    253,118,047.47/379,551,471.80 = 80,572,429.86/x
  3. Step 3: Cross multiply
    253,118,047.47x = 379,551,471.80 × 80,572,429.86
  4. Step 4: Simplify right side
    253,118,047.47x = 30,581,384,339,462,408
  5. Step 5: Solve for x
    x = 30,581,384,339,462,408/253,118,047.47
  6. Step 6: Final answer
    x = 120,818,664.04

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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.