Home / 432,322,398-648,550,781.64-145,175,246.64

Finding the Fourth Proportional to 432,322,398, 648,550,781.64 and 145,175,246.64

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Solution

The fourth proportional to 432,322,398, 648,550,781.64 and 145,175,246.64 is: 217,785,430.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,322,398 : 648,550,781.64 = 145,175,246.64 : x
  2. Step 2: Convert to fraction form
    432,322,398/648,550,781.64 = 145,175,246.64/x
  3. Step 3: Cross multiply
    432,322,398x = 648,550,781.64 × 145,175,246.64
  4. Step 4: Simplify right side
    432,322,398x = 94,153,519,683,151,776
  5. Step 5: Solve for x
    x = 94,153,519,683,151,776/432,322,398
  6. Step 6: Final answer
    x = 217,785,430.78

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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.