Home / 395,139,259.20-545,291,751.72-216,527,502.75

Finding the Fourth Proportional to 395,139,259.20, 545,291,751.72 and 216,527,502.75

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Solution

The fourth proportional to 395,139,259.20, 545,291,751.72 and 216,527,502.75 is: 298,807,720.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,139,259.20 : 545,291,751.72 = 216,527,502.75 : x
  2. Step 2: Convert to fraction form
    395,139,259.20/545,291,751.72 = 216,527,502.75/x
  3. Step 3: Cross multiply
    395,139,259.20x = 545,291,751.72 × 216,527,502.75
  4. Step 4: Simplify right side
    395,139,259.20x = 118,070,661,270,104,624
  5. Step 5: Solve for x
    x = 118,070,661,270,104,624/395,139,259.20
  6. Step 6: Final answer
    x = 298,807,720.37

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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.