Home / 77,309,137.50-106,683,891.39-42,501,574.50

Finding the Fourth Proportional to 77,309,137.50, 106,683,891.39 and 42,501,574.50

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Solution

The fourth proportional to 77,309,137.50, 106,683,891.39 and 42,501,574.50 is: 58,650,678.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,309,137.50 : 106,683,891.39 = 42,501,574.50 : x
  2. Step 2: Convert to fraction form
    77,309,137.50/106,683,891.39 = 42,501,574.50/x
  3. Step 3: Cross multiply
    77,309,137.50x = 106,683,891.39 × 42,501,574.50
  4. Step 4: Simplify right side
    77,309,137.50x = 4,534,233,357,861,994
  5. Step 5: Solve for x
    x = 4,534,233,357,861,994/77,309,137.50
  6. Step 6: Final answer
    x = 58,650,678.36

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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.