Home / 570,646,969.18-855,700,616.85-221,056,768.78

Finding the Fourth Proportional to 570,646,969.18, 855,700,616.85 and 221,056,768.78

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Solution

The fourth proportional to 570,646,969.18, 855,700,616.85 and 221,056,768.78 is: 331,480,623.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,646,969.18 : 855,700,616.85 = 221,056,768.78 : x
  2. Step 2: Convert to fraction form
    570,646,969.18/855,700,616.85 = 221,056,768.78/x
  3. Step 3: Cross multiply
    570,646,969.18x = 855,700,616.85 × 221,056,768.78
  4. Step 4: Simplify right side
    570,646,969.18x = 189,158,413,403,913,824
  5. Step 5: Solve for x
    x = 189,158,413,403,913,824/570,646,969.18
  6. Step 6: Final answer
    x = 331,480,623.96

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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.