Home / 68,989,671.56-103,484,507.43-28,039,516.49

Finding the Fourth Proportional to 68,989,671.56, 103,484,507.43 and 28,039,516.49

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Solution

The fourth proportional to 68,989,671.56, 103,484,507.43 and 28,039,516.49 is: 42,059,274.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,989,671.56 : 103,484,507.43 = 28,039,516.49 : x
  2. Step 2: Convert to fraction form
    68,989,671.56/103,484,507.43 = 28,039,516.49/x
  3. Step 3: Cross multiply
    68,989,671.56x = 103,484,507.43 × 28,039,516.49
  4. Step 4: Simplify right side
    68,989,671.56x = 2,901,655,552,025,590
  5. Step 5: Solve for x
    x = 2,901,655,552,025,590/68,989,671.56
  6. Step 6: Final answer
    x = 42,059,274.77

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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.