Home / 85,850,916.80-128,773,420.32-24,440,455.76

Finding the Fourth Proportional to 85,850,916.80, 128,773,420.32 and 24,440,455.76

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Solution

The fourth proportional to 85,850,916.80, 128,773,420.32 and 24,440,455.76 is: 36,659,842.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,850,916.80 : 128,773,420.32 = 24,440,455.76 : x
  2. Step 2: Convert to fraction form
    85,850,916.80/128,773,420.32 = 24,440,455.76/x
  3. Step 3: Cross multiply
    85,850,916.80x = 128,773,420.32 × 24,440,455.76
  4. Step 4: Simplify right side
    85,850,916.80x = 3,147,281,082,394,845
  5. Step 5: Solve for x
    x = 3,147,281,082,394,845/85,850,916.80
  6. Step 6: Final answer
    x = 36,659,842.43

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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.