Home / 419,218,279.11-578,523,596.83-243,110,836.76

Finding the Fourth Proportional to 419,218,279.11, 578,523,596.83 and 243,110,836.76

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Solution

The fourth proportional to 419,218,279.11, 578,523,596.83 and 243,110,836.76 is: 335,494,330.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,218,279.11 : 578,523,596.83 = 243,110,836.76 : x
  2. Step 2: Convert to fraction form
    419,218,279.11/578,523,596.83 = 243,110,836.76/x
  3. Step 3: Cross multiply
    419,218,279.11x = 578,523,596.83 × 243,110,836.76
  4. Step 4: Simplify right side
    419,218,279.11x = 140,645,355,707,245,776
  5. Step 5: Solve for x
    x = 140,645,355,707,245,776/419,218,279.11
  6. Step 6: Final answer
    x = 335,494,330.08

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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.