Home / 499,071,768.40-748,657,678.20-171,504,139.60

Finding the Fourth Proportional to 499,071,768.40, 748,657,678.20 and 171,504,139.60

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Solution

The fourth proportional to 499,071,768.40, 748,657,678.20 and 171,504,139.60 is: 257,273,400.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,071,768.40 : 748,657,678.20 = 171,504,139.60 : x
  2. Step 2: Convert to fraction form
    499,071,768.40/748,657,678.20 = 171,504,139.60/x
  3. Step 3: Cross multiply
    499,071,768.40x = 748,657,678.20 × 171,504,139.60
  4. Step 4: Simplify right side
    499,071,768.40x = 128,397,890,954,624,688
  5. Step 5: Solve for x
    x = 128,397,890,954,624,688/499,071,768.40
  6. Step 6: Final answer
    x = 257,273,400.51

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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.