Home / 77,709,341.98-107,287,288.89-49,467,649.93

Finding the Fourth Proportional to 77,709,341.98, 107,287,288.89 and 49,467,649.93

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Solution

The fourth proportional to 77,709,341.98, 107,287,288.89 and 49,467,649.93 is: 68,296,165.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,709,341.98 : 107,287,288.89 = 49,467,649.93 : x
  2. Step 2: Convert to fraction form
    77,709,341.98/107,287,288.89 = 49,467,649.93/x
  3. Step 3: Cross multiply
    77,709,341.98x = 107,287,288.89 × 49,467,649.93
  4. Step 4: Simplify right side
    77,709,341.98x = 5,307,250,048,212,862
  5. Step 5: Solve for x
    x = 5,307,250,048,212,862/77,709,341.98
  6. Step 6: Final answer
    x = 68,296,165.08

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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.