Home / 151,420,136.48-208,959,886.32-81,805,477.04

Finding the Fourth Proportional to 151,420,136.48, 208,959,886.32 and 81,805,477.04

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Solution

The fourth proportional to 151,420,136.48, 208,959,886.32 and 81,805,477.04 is: 112,891,611.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,420,136.48 : 208,959,886.32 = 81,805,477.04 : x
  2. Step 2: Convert to fraction form
    151,420,136.48/208,959,886.32 = 81,805,477.04/x
  3. Step 3: Cross multiply
    151,420,136.48x = 208,959,886.32 × 81,805,477.04
  4. Step 4: Simplify right side
    151,420,136.48x = 17,094,063,182,631,770
  5. Step 5: Solve for x
    x = 17,094,063,182,631,770/151,420,136.48
  6. Step 6: Final answer
    x = 112,891,611.25

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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.