Home / 77,692,873.77-107,216,149.55-42,885,555.21

Finding the Fourth Proportional to 77,692,873.77, 107,216,149.55 and 42,885,555.21

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Solution

The fourth proportional to 77,692,873.77, 107,216,149.55 and 42,885,555.21 is: 59,182,057.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,692,873.77 : 107,216,149.55 = 42,885,555.21 : x
  2. Step 2: Convert to fraction form
    77,692,873.77/107,216,149.55 = 42,885,555.21/x
  3. Step 3: Cross multiply
    77,692,873.77x = 107,216,149.55 × 42,885,555.21
  4. Step 4: Simplify right side
    77,692,873.77x = 4,598,024,100,715,714
  5. Step 5: Solve for x
    x = 4,598,024,100,715,714/77,692,873.77
  6. Step 6: Final answer
    x = 59,182,057.22

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1.5x scale

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.