Home / 101,807,128-140,492,655.66-55,396,582.30

Finding the Fourth Proportional to 101,807,128, 140,492,655.66 and 55,396,582.30

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Solution

The fourth proportional to 101,807,128, 140,492,655.66 and 55,396,582.30 is: 76,446,640.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,807,128 : 140,492,655.66 = 55,396,582.30 : x
  2. Step 2: Convert to fraction form
    101,807,128/140,492,655.66 = 55,396,582.30/x
  3. Step 3: Cross multiply
    101,807,128x = 140,492,655.66 × 55,396,582.30
  4. Step 4: Simplify right side
    101,807,128x = 7,782,812,961,814,750
  5. Step 5: Solve for x
    x = 7,782,812,961,814,750/101,807,128
  6. Step 6: Final answer
    x = 76,446,640.96

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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.