Home / 77,676,690.40-116,515,035.60-39,456,095.20

Finding the Fourth Proportional to 77,676,690.40, 116,515,035.60 and 39,456,095.20

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Solution

The fourth proportional to 77,676,690.40, 116,515,035.60 and 39,456,095.20 is: 59,184,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,676,690.40 : 116,515,035.60 = 39,456,095.20 : x
  2. Step 2: Convert to fraction form
    77,676,690.40/116,515,035.60 = 39,456,095.20/x
  3. Step 3: Cross multiply
    77,676,690.40x = 116,515,035.60 × 39,456,095.20
  4. Step 4: Simplify right side
    77,676,690.40x = 4,597,228,336,864,989
  5. Step 5: Solve for x
    x = 4,597,228,336,864,989/77,676,690.40
  6. Step 6: Final answer
    x = 59,184,142.80

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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.