Home / 80,424,003.60-120,636,005.40-57,749,187.60

Finding the Fourth Proportional to 80,424,003.60, 120,636,005.40 and 57,749,187.60

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Solution

The fourth proportional to 80,424,003.60, 120,636,005.40 and 57,749,187.60 is: 86,623,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,424,003.60 : 120,636,005.40 = 57,749,187.60 : x
  2. Step 2: Convert to fraction form
    80,424,003.60/120,636,005.40 = 57,749,187.60/x
  3. Step 3: Cross multiply
    80,424,003.60x = 120,636,005.40 × 57,749,187.60
  4. Step 4: Simplify right side
    80,424,003.60x = 6,966,631,307,159,214
  5. Step 5: Solve for x
    x = 6,966,631,307,159,214/80,424,003.60
  6. Step 6: Final answer
    x = 86,623,781.40

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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.