Home / 390,749,191.32-585,357,527.61-226,642,178.82

Finding the Fourth Proportional to 390,749,191.32, 585,357,527.61 and 226,642,178.82

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Solution

The fourth proportional to 390,749,191.32, 585,357,527.61 and 226,642,178.82 is: 339,518,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,749,191.32 : 585,357,527.61 = 226,642,178.82 : x
  2. Step 2: Convert to fraction form
    390,749,191.32/585,357,527.61 = 226,642,178.82/x
  3. Step 3: Cross multiply
    390,749,191.32x = 585,357,527.61 × 226,642,178.82
  4. Step 4: Simplify right side
    390,749,191.32x = 132,666,705,446,218,704
  5. Step 5: Solve for x
    x = 132,666,705,446,218,704/390,749,191.32
  6. Step 6: Final answer
    x = 339,518,822.80

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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.