Home / 190,656,985.51-263,098,891.96-108,148,998.79

Finding the Fourth Proportional to 190,656,985.51, 263,098,891.96 and 108,148,998.79

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Solution

The fourth proportional to 190,656,985.51, 263,098,891.96 and 108,148,998.79 is: 149,241,223.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,656,985.51 : 263,098,891.96 = 108,148,998.79 : x
  2. Step 2: Convert to fraction form
    190,656,985.51/263,098,891.96 = 108,148,998.79/x
  3. Step 3: Cross multiply
    190,656,985.51x = 263,098,891.96 × 108,148,998.79
  4. Step 4: Simplify right side
    190,656,985.51x = 28,453,881,748,232,384
  5. Step 5: Solve for x
    x = 28,453,881,748,232,384/190,656,985.51
  6. Step 6: Final answer
    x = 149,241,223.30

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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.