Home / 100,777,796.19-139,077,769.64-56,727,637.47

Finding the Fourth Proportional to 100,777,796.19, 139,077,769.64 and 56,727,637.47

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Solution

The fourth proportional to 100,777,796.19, 139,077,769.64 and 56,727,637.47 is: 78,286,622.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,777,796.19 : 139,077,769.64 = 56,727,637.47 : x
  2. Step 2: Convert to fraction form
    100,777,796.19/139,077,769.64 = 56,727,637.47/x
  3. Step 3: Cross multiply
    100,777,796.19x = 139,077,769.64 × 56,727,637.47
  4. Step 4: Simplify right side
    100,777,796.19x = 7,889,553,295,990,454
  5. Step 5: Solve for x
    x = 7,889,553,295,990,454/100,777,796.19
  6. Step 6: Final answer
    x = 78,286,622.59

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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.