Home / 420,035,680.60-629,864,564.10-161,164,864.60

Finding the Fourth Proportional to 420,035,680.60, 629,864,564.10 and 161,164,864.60

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Solution

The fourth proportional to 420,035,680.60, 629,864,564.10 and 161,164,864.60 is: 241,674,795.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,035,680.60 : 629,864,564.10 = 161,164,864.60 : x
  2. Step 2: Convert to fraction form
    420,035,680.60/629,864,564.10 = 161,164,864.60/x
  3. Step 3: Cross multiply
    420,035,680.60x = 629,864,564.10 × 161,164,864.60
  4. Step 4: Simplify right side
    420,035,680.60x = 101,512,037,189,514,528
  5. Step 5: Solve for x
    x = 101,512,037,189,514,528/420,035,680.60
  6. Step 6: Final answer
    x = 241,674,795.45

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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.