Home / 128,328,026.40-177,046,147.44-84,298,733.28

Finding the Fourth Proportional to 128,328,026.40, 177,046,147.44 and 84,298,733.28

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Solution

The fourth proportional to 128,328,026.40, 177,046,147.44 and 84,298,733.28 is: 116,301,687.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,328,026.40 : 177,046,147.44 = 84,298,733.28 : x
  2. Step 2: Convert to fraction form
    128,328,026.40/177,046,147.44 = 84,298,733.28/x
  3. Step 3: Cross multiply
    128,328,026.40x = 177,046,147.44 × 84,298,733.28
  4. Step 4: Simplify right side
    128,328,026.40x = 14,924,765,961,296,114
  5. Step 5: Solve for x
    x = 14,924,765,961,296,114/128,328,026.40
  6. Step 6: Final answer
    x = 116,301,687.01

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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.