Home / 71,109,802.79-98,139,491.81-40,171,964.98

Finding the Fourth Proportional to 71,109,802.79, 98,139,491.81 and 40,171,964.98

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Solution

The fourth proportional to 71,109,802.79, 98,139,491.81 and 40,171,964.98 is: 55,441,810.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,109,802.79 : 98,139,491.81 = 40,171,964.98 : x
  2. Step 2: Convert to fraction form
    71,109,802.79/98,139,491.81 = 40,171,964.98/x
  3. Step 3: Cross multiply
    71,109,802.79x = 98,139,491.81 × 40,171,964.98
  4. Step 4: Simplify right side
    71,109,802.79x = 3,942,456,228,001,398
  5. Step 5: Solve for x
    x = 3,942,456,228,001,398/71,109,802.79
  6. Step 6: Final answer
    x = 55,441,810.74

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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.