Home / 101,419,656.86-139,957,753.05-56,765,615.67

Finding the Fourth Proportional to 101,419,656.86, 139,957,753.05 and 56,765,615.67

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Solution

The fourth proportional to 101,419,656.86, 139,957,753.05 and 56,765,615.67 is: 78,335,780.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,419,656.86 : 139,957,753.05 = 56,765,615.67 : x
  2. Step 2: Convert to fraction form
    101,419,656.86/139,957,753.05 = 56,765,615.67/x
  3. Step 3: Cross multiply
    101,419,656.86x = 139,957,753.05 × 56,765,615.67
  4. Step 4: Simplify right side
    101,419,656.86x = 7,944,788,019,673,071
  5. Step 5: Solve for x
    x = 7,944,788,019,673,071/101,419,656.86
  6. Step 6: Final answer
    x = 78,335,780.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.