Home / 208,496,607.12-287,725,355.15-115,676,893.53

Finding the Fourth Proportional to 208,496,607.12, 287,725,355.15 and 115,676,893.53

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Solution

The fourth proportional to 208,496,607.12, 287,725,355.15 and 115,676,893.53 is: 159,634,133.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,496,607.12 : 287,725,355.15 = 115,676,893.53 : x
  2. Step 2: Convert to fraction form
    208,496,607.12/287,725,355.15 = 115,676,893.53/x
  3. Step 3: Cross multiply
    208,496,607.12x = 287,725,355.15 × 115,676,893.53
  4. Step 4: Simplify right side
    208,496,607.12x = 33,283,175,272,989,600
  5. Step 5: Solve for x
    x = 33,283,175,272,989,600/208,496,607.12
  6. Step 6: Final answer
    x = 159,634,133.78

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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.