Home / 374,303,149.80-561,492,243.90-128,627,428.20

Finding the Fourth Proportional to 374,303,149.80, 561,492,243.90 and 128,627,428.20

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Solution

The fourth proportional to 374,303,149.80, 561,492,243.90 and 128,627,428.20 is: 192,954,035.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,303,149.80 : 561,492,243.90 = 128,627,428.20 : x
  2. Step 2: Convert to fraction form
    374,303,149.80/561,492,243.90 = 128,627,428.20/x
  3. Step 3: Cross multiply
    374,303,149.80x = 561,492,243.90 × 128,627,428.20
  4. Step 4: Simplify right side
    374,303,149.80x = 72,223,303,287,104,144
  5. Step 5: Solve for x
    x = 72,223,303,287,104,144/374,303,149.80
  6. Step 6: Final answer
    x = 192,954,035.59

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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.