Home / 151,389,338.47-208,917,371.16-81,774,720.04

Finding the Fourth Proportional to 151,389,338.47, 208,917,371.16 and 81,774,720.04

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Solution

The fourth proportional to 151,389,338.47, 208,917,371.16 and 81,774,720.04 is: 112,849,159.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,338.47 : 208,917,371.16 = 81,774,720.04 : x
  2. Step 2: Convert to fraction form
    151,389,338.47/208,917,371.16 = 81,774,720.04/x
  3. Step 3: Cross multiply
    151,389,338.47x = 208,917,371.16 × 81,774,720.04
  4. Step 4: Simplify right side
    151,389,338.47x = 17,084,159,537,272,820
  5. Step 5: Solve for x
    x = 17,084,159,537,272,820/151,389,338.47
  6. Step 6: Final answer
    x = 112,849,159.06

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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.