Home / 61,212,007.80-91,605,435.30-42,080,131.80

Finding the Fourth Proportional to 61,212,007.80, 91,605,435.30 and 42,080,131.80

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Solution

The fourth proportional to 61,212,007.80, 91,605,435.30 and 42,080,131.80 is: 62,974,062.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,212,007.80 : 91,605,435.30 = 42,080,131.80 : x
  2. Step 2: Convert to fraction form
    61,212,007.80/91,605,435.30 = 42,080,131.80/x
  3. Step 3: Cross multiply
    61,212,007.80x = 91,605,435.30 × 42,080,131.80
  4. Step 4: Simplify right side
    61,212,007.80x = 3,854,768,791,020,372
  5. Step 5: Solve for x
    x = 3,854,768,791,020,372/61,212,007.80
  6. Step 6: Final answer
    x = 62,974,062.27

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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.