Home / 7,920,340.05-11,885,507.79-3,371,381.58

Finding the Fourth Proportional to 7,920,340.05, 11,885,507.79 and 3,371,381.58

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Solution

The fourth proportional to 7,920,340.05, 11,885,507.79 and 3,371,381.58 is: 5,059,199.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920,340.05 : 11,885,507.79 = 3,371,381.58 : x
  2. Step 2: Convert to fraction form
    7,920,340.05/11,885,507.79 = 3,371,381.58/x
  3. Step 3: Cross multiply
    7,920,340.05x = 11,885,507.79 × 3,371,381.58
  4. Step 4: Simplify right side
    7,920,340.05x = 40,070,582,032,152.51
  5. Step 5: Solve for x
    x = 40,070,582,032,152.51/7,920,340.05
  6. Step 6: Final answer
    x = 5,059,199.70

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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.