Home / 109,889,941.20-164,834,911.80-45,240,143.55

Finding the Fourth Proportional to 109,889,941.20, 164,834,911.80 and 45,240,143.55

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Solution

The fourth proportional to 109,889,941.20, 164,834,911.80 and 45,240,143.55 is: 67,860,215.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,889,941.20 : 164,834,911.80 = 45,240,143.55 : x
  2. Step 2: Convert to fraction form
    109,889,941.20/164,834,911.80 = 45,240,143.55/x
  3. Step 3: Cross multiply
    109,889,941.20x = 164,834,911.80 × 45,240,143.55
  4. Step 4: Simplify right side
    109,889,941.20x = 7,457,155,071,883,589
  5. Step 5: Solve for x
    x = 7,457,155,071,883,589/109,889,941.20
  6. Step 6: Final answer
    x = 67,860,215.33

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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.