Home / 402,524,759.70-603,787,139.55-305,778,878.10

Finding the Fourth Proportional to 402,524,759.70, 603,787,139.55 and 305,778,878.10

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Solution

The fourth proportional to 402,524,759.70, 603,787,139.55 and 305,778,878.10 is: 458,668,317.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,524,759.70 : 603,787,139.55 = 305,778,878.10 : x
  2. Step 2: Convert to fraction form
    402,524,759.70/603,787,139.55 = 305,778,878.10/x
  3. Step 3: Cross multiply
    402,524,759.70x = 603,787,139.55 × 305,778,878.10
  4. Step 4: Simplify right side
    402,524,759.70x = 184,625,354,142,807,136
  5. Step 5: Solve for x
    x = 184,625,354,142,807,136/402,524,759.70
  6. Step 6: Final answer
    x = 458,668,317.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.