Home / 101,440,272.35-139,975,765.89-56,788,689.49

Finding the Fourth Proportional to 101,440,272.35, 139,975,765.89 and 56,788,689.49

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Solution

The fourth proportional to 101,440,272.35, 139,975,765.89 and 56,788,689.49 is: 78,361,780.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,440,272.35 : 139,975,765.89 = 56,788,689.49 : x
  2. Step 2: Convert to fraction form
    101,440,272.35/139,975,765.89 = 56,788,689.49/x
  3. Step 3: Cross multiply
    101,440,272.35x = 139,975,765.89 × 56,788,689.49
  4. Step 4: Simplify right side
    101,440,272.35x = 7,949,040,305,252,143
  5. Step 5: Solve for x
    x = 7,949,040,305,252,143/101,440,272.35
  6. Step 6: Final answer
    x = 78,361,780.00

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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.