Home / 638,249,412,830.20-880,777,659,356.55-353,109,973,659.65

Finding the Fourth Proportional to 638,249,412,830.20, 880,777,659,356.55 and 353,109,973,659.65

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Solution

The fourth proportional to 638,249,412,830.20, 880,777,659,356.55 and 353,109,973,659.65 is: 487,288,150,750.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,249,412,830.20 : 880,777,659,356.55 = 353,109,973,659.65 : x
  2. Step 2: Convert to fraction form
    638,249,412,830.20/880,777,659,356.55 = 353,109,973,659.65/x
  3. Step 3: Cross multiply
    638,249,412,830.20x = 880,777,659,356.55 × 353,109,973,659.65
  4. Step 4: Simplify right side
    638,249,412,830.20x = 311,011,376,095,399,591,804,928
  5. Step 5: Solve for x
    x = 311,011,376,095,399,591,804,928/638,249,412,830.20
  6. Step 6: Final answer
    x = 487,288,150,750.15

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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.