Home / 153,543,805.12-211,890,435.84-83,929,465.60

Finding the Fourth Proportional to 153,543,805.12, 211,890,435.84 and 83,929,465.60

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Solution

The fourth proportional to 153,543,805.12, 211,890,435.84 and 83,929,465.60 is: 115,822,654.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,543,805.12 : 211,890,435.84 = 83,929,465.60 : x
  2. Step 2: Convert to fraction form
    153,543,805.12/211,890,435.84 = 83,929,465.60/x
  3. Step 3: Cross multiply
    153,543,805.12x = 211,890,435.84 × 83,929,465.60
  4. Step 4: Simplify right side
    153,543,805.12x = 17,783,851,045,802,286
  5. Step 5: Solve for x
    x = 17,783,851,045,802,286/153,543,805.12
  6. Step 6: Final answer
    x = 115,822,654.21

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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.