Home / 77,692,847.52-107,216,113.40-42,885,528.88

Finding the Fourth Proportional to 77,692,847.52, 107,216,113.40 and 42,885,528.88

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Solution

The fourth proportional to 77,692,847.52, 107,216,113.40 and 42,885,528.88 is: 59,182,020.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,692,847.52 : 107,216,113.40 = 42,885,528.88 : x
  2. Step 2: Convert to fraction form
    77,692,847.52/107,216,113.40 = 42,885,528.88/x
  3. Step 3: Cross multiply
    77,692,847.52x = 107,216,113.40 × 42,885,528.88
  4. Step 4: Simplify right side
    77,692,847.52x = 4,598,019,727,617,056
  5. Step 5: Solve for x
    x = 4,598,019,727,617,056/77,692,847.52
  6. Step 6: Final answer
    x = 59,182,020.92

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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.