Home / 77,939,859.21-107,552,629.54-42,657,592.46

Finding the Fourth Proportional to 77,939,859.21, 107,552,629.54 and 42,657,592.46

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Solution

The fourth proportional to 77,939,859.21, 107,552,629.54 and 42,657,592.46 is: 58,865,082.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,939,859.21 : 107,552,629.54 = 42,657,592.46 : x
  2. Step 2: Convert to fraction form
    77,939,859.21/107,552,629.54 = 42,657,592.46/x
  3. Step 3: Cross multiply
    77,939,859.21x = 107,552,629.54 × 42,657,592.46
  4. Step 4: Simplify right side
    77,939,859.21x = 4,587,936,238,434,236
  5. Step 5: Solve for x
    x = 4,587,936,238,434,236/77,939,859.21
  6. Step 6: Final answer
    x = 58,865,082.45

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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.