Home / 78,833,853.30-108,000,574.85-75,886,428.54

Finding the Fourth Proportional to 78,833,853.30, 108,000,574.85 and 75,886,428.54

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Solution

The fourth proportional to 78,833,853.30, 108,000,574.85 and 75,886,428.54 is: 103,962,670.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833,853.30 : 108,000,574.85 = 75,886,428.54 : x
  2. Step 2: Convert to fraction form
    78,833,853.30/108,000,574.85 = 75,886,428.54/x
  3. Step 3: Cross multiply
    78,833,853.30x = 108,000,574.85 × 75,886,428.54
  4. Step 4: Simplify right side
    78,833,853.30x = 8,195,777,905,254,015
  5. Step 5: Solve for x
    x = 8,195,777,905,254,015/78,833,853.30
  6. Step 6: Final answer
    x = 103,962,670.38

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.