Home / 421,269,253.77-581,300,633.55-242,711,556.75

Finding the Fourth Proportional to 421,269,253.77, 581,300,633.55 and 242,711,556.75

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Solution

The fourth proportional to 421,269,253.77, 581,300,633.55 and 242,711,556.75 is: 334,912,601.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,269,253.77 : 581,300,633.55 = 242,711,556.75 : x
  2. Step 2: Convert to fraction form
    421,269,253.77/581,300,633.55 = 242,711,556.75/x
  3. Step 3: Cross multiply
    421,269,253.77x = 581,300,633.55 × 242,711,556.75
  4. Step 4: Simplify right side
    421,269,253.77x = 141,088,381,708,681,760
  5. Step 5: Solve for x
    x = 141,088,381,708,681,760/421,269,253.77
  6. Step 6: Final answer
    x = 334,912,601.49

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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.