Home / 545,135,065.20-817,403,999.40-221,653,465.20

Finding the Fourth Proportional to 545,135,065.20, 817,403,999.40 and 221,653,465.20

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Solution

The fourth proportional to 545,135,065.20, 817,403,999.40 and 221,653,465.20 is: 332,358,786.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,135,065.20 : 817,403,999.40 = 221,653,465.20 : x
  2. Step 2: Convert to fraction form
    545,135,065.20/817,403,999.40 = 221,653,465.20/x
  3. Step 3: Cross multiply
    545,135,065.20x = 817,403,999.40 × 221,653,465.20
  4. Step 4: Simplify right side
    545,135,065.20x = 181,180,428,935,348,704
  5. Step 5: Solve for x
    x = 181,180,428,935,348,704/545,135,065.20
  6. Step 6: Final answer
    x = 332,358,786.84

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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.