Home / 151,389,366.66-208,917,410.09-81,774,748.13

Finding the Fourth Proportional to 151,389,366.66, 208,917,410.09 and 81,774,748.13

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Solution

The fourth proportional to 151,389,366.66, 208,917,410.09 and 81,774,748.13 is: 112,849,197.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,389,366.66 : 208,917,410.09 = 81,774,748.13 : x
  2. Step 2: Convert to fraction form
    151,389,366.66/208,917,410.09 = 81,774,748.13/x
  3. Step 3: Cross multiply
    151,389,366.66x = 208,917,410.09 × 81,774,748.13
  4. Step 4: Simplify right side
    151,389,366.66x = 17,084,168,588,628,210
  5. Step 5: Solve for x
    x = 17,084,168,588,628,210/151,389,366.66
  6. Step 6: Final answer
    x = 112,849,197.84

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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.