Home / 208,496,728.46-287,725,520.86-115,677,014.88

Finding the Fourth Proportional to 208,496,728.46, 287,725,520.86 and 115,677,014.88

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Solution

The fourth proportional to 208,496,728.46, 287,725,520.86 and 115,677,014.88 is: 159,634,300.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,496,728.46 : 287,725,520.86 = 115,677,014.88 : x
  2. Step 2: Convert to fraction form
    208,496,728.46/287,725,520.86 = 115,677,014.88/x
  3. Step 3: Cross multiply
    208,496,728.46x = 287,725,520.86 × 115,677,014.88
  4. Step 4: Simplify right side
    208,496,728.46x = 33,283,229,357,877,972
  5. Step 5: Solve for x
    x = 33,283,229,357,877,972/208,496,728.46
  6. Step 6: Final answer
    x = 159,634,300.28

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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.