Home / 67,507,719.72-93,158,744.40-39,629,982.12

Finding the Fourth Proportional to 67,507,719.72, 93,158,744.40 and 39,629,982.12

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Solution

The fourth proportional to 67,507,719.72, 93,158,744.40 and 39,629,982.12 is: 54,688,254.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,507,719.72 : 93,158,744.40 = 39,629,982.12 : x
  2. Step 2: Convert to fraction form
    67,507,719.72/93,158,744.40 = 39,629,982.12/x
  3. Step 3: Cross multiply
    67,507,719.72x = 93,158,744.40 × 39,629,982.12
  4. Step 4: Simplify right side
    67,507,719.72x = 3,691,879,374,893,650
  5. Step 5: Solve for x
    x = 3,691,879,374,893,650/67,507,719.72
  6. Step 6: Final answer
    x = 54,688,254.77

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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.