Home / 456,128,088.05-629,976,391.56-309,195,280.37

Finding the Fourth Proportional to 456,128,088.05, 629,976,391.56 and 309,195,280.37

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Solution

The fourth proportional to 456,128,088.05, 629,976,391.56 and 309,195,280.37 is: 427,041,728.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,128,088.05 : 629,976,391.56 = 309,195,280.37 : x
  2. Step 2: Convert to fraction form
    456,128,088.05/629,976,391.56 = 309,195,280.37/x
  3. Step 3: Cross multiply
    456,128,088.05x = 629,976,391.56 × 309,195,280.37
  4. Step 4: Simplify right side
    456,128,088.05x = 194,785,727,011,725,216
  5. Step 5: Solve for x
    x = 194,785,727,011,725,216/456,128,088.05
  6. Step 6: Final answer
    x = 427,041,728.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.