Home / 77,709,347.42-107,287,296.40-49,467,655.37

Finding the Fourth Proportional to 77,709,347.42, 107,287,296.40 and 49,467,655.37

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Solution

The fourth proportional to 77,709,347.42, 107,287,296.40 and 49,467,655.37 is: 68,296,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,709,347.42 : 107,287,296.40 = 49,467,655.37 : x
  2. Step 2: Convert to fraction form
    77,709,347.42/107,287,296.40 = 49,467,655.37/x
  3. Step 3: Cross multiply
    77,709,347.42x = 107,287,296.40 × 49,467,655.37
  4. Step 4: Simplify right side
    77,709,347.42x = 5,307,251,003,646,903
  5. Step 5: Solve for x
    x = 5,307,251,003,646,903/77,709,347.42
  6. Step 6: Final answer
    x = 68,296,172.60

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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.