Home / 77,273,818.40-115,910,727.60-69,211,661.60

Finding the Fourth Proportional to 77,273,818.40, 115,910,727.60 and 69,211,661.60

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Solution

The fourth proportional to 77,273,818.40, 115,910,727.60 and 69,211,661.60 is: 103,817,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,273,818.40 : 115,910,727.60 = 69,211,661.60 : x
  2. Step 2: Convert to fraction form
    77,273,818.40/115,910,727.60 = 69,211,661.60/x
  3. Step 3: Cross multiply
    77,273,818.40x = 115,910,727.60 × 69,211,661.60
  4. Step 4: Simplify right side
    77,273,818.40x = 8,022,374,054,460,979
  5. Step 5: Solve for x
    x = 8,022,374,054,460,979/77,273,818.40
  6. Step 6: Final answer
    x = 103,817,492.40

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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.