Home / 77,320,841.28-106,699,891.32-42,511,460.64

Finding the Fourth Proportional to 77,320,841.28, 106,699,891.32 and 42,511,460.64

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Solution

The fourth proportional to 77,320,841.28, 106,699,891.32 and 42,511,460.64 is: 58,664,237.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,320,841.28 : 106,699,891.32 = 42,511,460.64 : x
  2. Step 2: Convert to fraction form
    77,320,841.28/106,699,891.32 = 42,511,460.64/x
  3. Step 3: Cross multiply
    77,320,841.28x = 106,699,891.32 × 42,511,460.64
  4. Step 4: Simplify right side
    77,320,841.28x = 4,535,968,230,142,457
  5. Step 5: Solve for x
    x = 4,535,968,230,142,457/77,320,841.28
  6. Step 6: Final answer
    x = 58,664,237.93

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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.