Home / 101,440,220.75-139,975,694.81-56,788,637.89

Finding the Fourth Proportional to 101,440,220.75, 139,975,694.81 and 56,788,637.89

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Solution

The fourth proportional to 101,440,220.75, 139,975,694.81 and 56,788,637.89 is: 78,361,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,440,220.75 : 139,975,694.81 = 56,788,637.89 : x
  2. Step 2: Convert to fraction form
    101,440,220.75/139,975,694.81 = 56,788,637.89/x
  3. Step 3: Cross multiply
    101,440,220.75x = 139,975,694.81 × 56,788,637.89
  4. Step 4: Simplify right side
    101,440,220.75x = 7,949,029,045,966,243
  5. Step 5: Solve for x
    x = 7,949,029,045,966,243/101,440,220.75
  6. Step 6: Final answer
    x = 78,361,708.87

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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.