Home / 68,989,667.88-103,484,501.94-28,039,512.84

Finding the Fourth Proportional to 68,989,667.88, 103,484,501.94 and 28,039,512.84

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Solution

The fourth proportional to 68,989,667.88, 103,484,501.94 and 28,039,512.84 is: 42,059,269.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,989,667.88 : 103,484,501.94 = 28,039,512.84 : x
  2. Step 2: Convert to fraction form
    68,989,667.88/103,484,501.94 = 28,039,512.84/x
  3. Step 3: Cross multiply
    68,989,667.88x = 103,484,501.94 × 28,039,512.84
  4. Step 4: Simplify right side
    68,989,667.88x = 2,901,655,020,887,635
  5. Step 5: Solve for x
    x = 2,901,655,020,887,635/68,989,667.88
  6. Step 6: Final answer
    x = 42,059,269.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.