Home / 638,249,412,815.48-880,777,659,336.23-353,109,973,644.91

Finding the Fourth Proportional to 638,249,412,815.48, 880,777,659,336.23 and 353,109,973,644.91

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Solution

The fourth proportional to 638,249,412,815.48, 880,777,659,336.23 and 353,109,973,644.91 is: 487,288,150,729.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,249,412,815.48 : 880,777,659,336.23 = 353,109,973,644.91 : x
  2. Step 2: Convert to fraction form
    638,249,412,815.48/880,777,659,336.23 = 353,109,973,644.91/x
  3. Step 3: Cross multiply
    638,249,412,815.48x = 880,777,659,336.23 × 353,109,973,644.91
  4. Step 4: Simplify right side
    638,249,412,815.48x = 311,011,376,075,241,632,563,200
  5. Step 5: Solve for x
    x = 311,011,376,075,241,632,563,200/638,249,412,815.48
  6. Step 6: Final answer
    x = 487,288,150,729.81

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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.