Home / 85,680,509.22-118,239,102.72-49,011,080.22

Finding the Fourth Proportional to 85,680,509.22, 118,239,102.72 and 49,011,080.22

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Solution

The fourth proportional to 85,680,509.22, 118,239,102.72 and 49,011,080.22 is: 67,635,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,680,509.22 : 118,239,102.72 = 49,011,080.22 : x
  2. Step 2: Convert to fraction form
    85,680,509.22/118,239,102.72 = 49,011,080.22/x
  3. Step 3: Cross multiply
    85,680,509.22x = 118,239,102.72 × 49,011,080.22
  4. Step 4: Simplify right side
    85,680,509.22x = 5,795,026,148,494,592
  5. Step 5: Solve for x
    x = 5,795,026,148,494,592/85,680,509.22
  6. Step 6: Final answer
    x = 67,635,290.70

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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.