Home / 638,249,412,825.60-880,777,659,350.19-353,109,973,655.04

Finding the Fourth Proportional to 638,249,412,825.60, 880,777,659,350.19 and 353,109,973,655.04

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Solution

The fourth proportional to 638,249,412,825.60, 880,777,659,350.19 and 353,109,973,655.04 is: 487,288,150,743.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,249,412,825.60 : 880,777,659,350.19 = 353,109,973,655.04 : x
  2. Step 2: Convert to fraction form
    638,249,412,825.60/880,777,659,350.19 = 353,109,973,655.04/x
  3. Step 3: Cross multiply
    638,249,412,825.60x = 880,777,659,350.19 × 353,109,973,655.04
  4. Step 4: Simplify right side
    638,249,412,825.60x = 311,011,376,089,093,371,854,848
  5. Step 5: Solve for x
    x = 311,011,376,089,093,371,854,848/638,249,412,825.60
  6. Step 6: Final answer
    x = 487,288,150,743.79

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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.