Home / 310,827,428.48-428,997,999.36-185,387,665.92

Finding the Fourth Proportional to 310,827,428.48, 428,997,999.36 and 185,387,665.92

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Solution

The fourth proportional to 310,827,428.48, 428,997,999.36 and 185,387,665.92 is: 255,868,467.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,827,428.48 : 428,997,999.36 = 185,387,665.92 : x
  2. Step 2: Convert to fraction form
    310,827,428.48/428,997,999.36 = 185,387,665.92/x
  3. Step 3: Cross multiply
    310,827,428.48x = 428,997,999.36 × 185,387,665.92
  4. Step 4: Simplify right side
    310,827,428.48x = 79,530,937,785,700,048
  5. Step 5: Solve for x
    x = 79,530,937,785,700,048/310,827,428.48
  6. Step 6: Final answer
    x = 255,868,467.51

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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.