Home / 279,077,655.86-385,127,170.29-155,347,562.42

Finding the Fourth Proportional to 279,077,655.86, 385,127,170.29 and 155,347,562.42

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Solution

The fourth proportional to 279,077,655.86, 385,127,170.29 and 155,347,562.42 is: 214,379,639.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,077,655.86 : 385,127,170.29 = 155,347,562.42 : x
  2. Step 2: Convert to fraction form
    279,077,655.86/385,127,170.29 = 155,347,562.42/x
  3. Step 3: Cross multiply
    279,077,655.86x = 385,127,170.29 × 155,347,562.42
  4. Step 4: Simplify right side
    279,077,655.86x = 59,828,567,126,263,744
  5. Step 5: Solve for x
    x = 59,828,567,126,263,744/279,077,655.86
  6. Step 6: Final answer
    x = 214,379,639.04

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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.