Home / 128,072,776.22-191,799,452.33-73,319,295.73

Finding the Fourth Proportional to 128,072,776.22, 191,799,452.33 and 73,319,295.73

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Solution

The fourth proportional to 128,072,776.22, 191,799,452.33 and 73,319,295.73 is: 109,801,639.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,072,776.22 : 191,799,452.33 = 73,319,295.73 : x
  2. Step 2: Convert to fraction form
    128,072,776.22/191,799,452.33 = 73,319,295.73/x
  3. Step 3: Cross multiply
    128,072,776.22x = 191,799,452.33 × 73,319,295.73
  4. Step 4: Simplify right side
    128,072,776.22x = 14,062,600,764,909,712
  5. Step 5: Solve for x
    x = 14,062,600,764,909,712/128,072,776.22
  6. Step 6: Final answer
    x = 109,801,639.19

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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.