Home / 42,776,009.80-59,015,383.86-28,099,578.76

Finding the Fourth Proportional to 42,776,009.80, 59,015,383.86 and 28,099,578.76

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Solution

The fourth proportional to 42,776,009.80, 59,015,383.86 and 28,099,578.76 is: 38,767,230.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,776,009.80 : 59,015,383.86 = 28,099,578.76 : x
  2. Step 2: Convert to fraction form
    42,776,009.80/59,015,383.86 = 28,099,578.76/x
  3. Step 3: Cross multiply
    42,776,009.80x = 59,015,383.86 × 28,099,578.76
  4. Step 4: Simplify right side
    42,776,009.80x = 1,658,307,426,825,703
  5. Step 5: Solve for x
    x = 1,658,307,426,825,703/42,776,009.80
  6. Step 6: Final answer
    x = 38,767,230.38

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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.