Home / 395,139,257.52-545,291,749.39-216,527,501.06

Finding the Fourth Proportional to 395,139,257.52, 545,291,749.39 and 216,527,501.06

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Solution

The fourth proportional to 395,139,257.52, 545,291,749.39 and 216,527,501.06 is: 298,807,718.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,139,257.52 : 545,291,749.39 = 216,527,501.06 : x
  2. Step 2: Convert to fraction form
    395,139,257.52/545,291,749.39 = 216,527,501.06/x
  3. Step 3: Cross multiply
    395,139,257.52x = 545,291,749.39 × 216,527,501.06
  4. Step 4: Simplify right side
    395,139,257.52x = 118,070,659,843,234,448
  5. Step 5: Solve for x
    x = 118,070,659,843,234,448/395,139,257.52
  6. Step 6: Final answer
    x = 298,807,718.03

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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.