Home / 81,461,714.88-112,421,205.48-50,531,848.68

Finding the Fourth Proportional to 81,461,714.88, 112,421,205.48 and 50,531,848.68

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Solution

The fourth proportional to 81,461,714.88, 112,421,205.48 and 50,531,848.68 is: 69,736,456.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,461,714.88 : 112,421,205.48 = 50,531,848.68 : x
  2. Step 2: Convert to fraction form
    81,461,714.88/112,421,205.48 = 50,531,848.68/x
  3. Step 3: Cross multiply
    81,461,714.88x = 112,421,205.48 × 50,531,848.68
  4. Step 4: Simplify right side
    81,461,714.88x = 5,680,851,344,349,621
  5. Step 5: Solve for x
    x = 5,680,851,344,349,621/81,461,714.88
  6. Step 6: Final answer
    x = 69,736,456.60

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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.