Home / 128,799,743.61-193,098,003.75-64,068,217.77

Finding the Fourth Proportional to 128,799,743.61, 193,098,003.75 and 64,068,217.77

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Solution

The fourth proportional to 128,799,743.61, 193,098,003.75 and 64,068,217.77 is: 96,051,782.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,799,743.61 : 193,098,003.75 = 64,068,217.77 : x
  2. Step 2: Convert to fraction form
    128,799,743.61/193,098,003.75 = 64,068,217.77/x
  3. Step 3: Cross multiply
    128,799,743.61x = 193,098,003.75 × 64,068,217.77
  4. Step 4: Simplify right side
    128,799,743.61x = 12,371,444,955,207,278
  5. Step 5: Solve for x
    x = 12,371,444,955,207,278/128,799,743.61
  6. Step 6: Final answer
    x = 96,051,782.47

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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.