Home / 413,937,987.12-620,906,981.22-168,237,056.70

Finding the Fourth Proportional to 413,937,987.12, 620,906,981.22 and 168,237,056.70

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Solution

The fourth proportional to 413,937,987.12, 620,906,981.22 and 168,237,056.70 is: 252,355,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,937,987.12 : 620,906,981.22 = 168,237,056.70 : x
  2. Step 2: Convert to fraction form
    413,937,987.12/620,906,981.22 = 168,237,056.70/x
  3. Step 3: Cross multiply
    413,937,987.12x = 620,906,981.22 × 168,237,056.70
  4. Step 4: Simplify right side
    413,937,987.12x = 104,459,563,004,934,976
  5. Step 5: Solve for x
    x = 104,459,563,004,934,976/413,937,987.12
  6. Step 6: Final answer
    x = 252,355,585.27

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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.