Home / 74,621,864,933.91-102,978,166,003.20-40,789,295,154.45

Finding the Fourth Proportional to 74,621,864,933.91, 102,978,166,003.20 and 40,789,295,154.45

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Solution

The fourth proportional to 74,621,864,933.91, 102,978,166,003.20 and 40,789,295,154.45 is: 56,289,223,155.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,621,864,933.91 : 102,978,166,003.20 = 40,789,295,154.45 : x
  2. Step 2: Convert to fraction form
    74,621,864,933.91/102,978,166,003.20 = 40,789,295,154.45/x
  3. Step 3: Cross multiply
    74,621,864,933.91x = 102,978,166,003.20 × 40,789,295,154.45
  4. Step 4: Simplify right side
    74,621,864,933.91x = 4,200,406,807,568,473,128,960
  5. Step 5: Solve for x
    x = 4,200,406,807,568,473,128,960/74,621,864,933.91
  6. Step 6: Final answer
    x = 56,289,223,155.82

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Why These Related Problems?

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