Home / 513,113,019.77-769,591,762.77-139,650,008.26

Finding the Fourth Proportional to 513,113,019.77, 769,591,762.77 and 139,650,008.26

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Solution

The fourth proportional to 513,113,019.77, 769,591,762.77 and 139,650,008.26 is: 209,453,847.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,113,019.77 : 769,591,762.77 = 139,650,008.26 : x
  2. Step 2: Convert to fraction form
    513,113,019.77/769,591,762.77 = 139,650,008.26/x
  3. Step 3: Cross multiply
    513,113,019.77x = 769,591,762.77 × 139,650,008.26
  4. Step 4: Simplify right side
    513,113,019.77x = 107,473,496,025,734,480
  5. Step 5: Solve for x
    x = 107,473,496,025,734,480/513,113,019.77
  6. Step 6: Final answer
    x = 209,453,847.18

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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.