Home / 128,579,557.60-177,441,403.08-69,843,203.44

Finding the Fourth Proportional to 128,579,557.60, 177,441,403.08 and 69,843,203.44

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Solution

The fourth proportional to 128,579,557.60, 177,441,403.08 and 69,843,203.44 is: 96,384,497.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,579,557.60 : 177,441,403.08 = 69,843,203.44 : x
  2. Step 2: Convert to fraction form
    128,579,557.60/177,441,403.08 = 69,843,203.44/x
  3. Step 3: Cross multiply
    128,579,557.60x = 177,441,403.08 × 69,843,203.44
  4. Step 4: Simplify right side
    128,579,557.60x = 12,393,076,013,995,484
  5. Step 5: Solve for x
    x = 12,393,076,013,995,484/128,579,557.60
  6. Step 6: Final answer
    x = 96,384,497.24

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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.