Home / 128,018,001.60-176,665,404.96-69,280,675.20

Finding the Fourth Proportional to 128,018,001.60, 176,665,404.96 and 69,280,675.20

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Solution

The fourth proportional to 128,018,001.60, 176,665,404.96 and 69,280,675.20 is: 95,607,636.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,018,001.60 : 176,665,404.96 = 69,280,675.20 : x
  2. Step 2: Convert to fraction form
    128,018,001.60/176,665,404.96 = 69,280,675.20/x
  3. Step 3: Cross multiply
    128,018,001.60x = 176,665,404.96 × 69,280,675.20
  4. Step 4: Simplify right side
    128,018,001.60x = 12,239,498,540,110,230
  5. Step 5: Solve for x
    x = 12,239,498,540,110,230/128,018,001.60
  6. Step 6: Final answer
    x = 95,607,636.33

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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.