Home / 762,561,743.79-1,052,250,998.09-427,957,518.63

Finding the Fourth Proportional to 762,561,743.79, 1,052,250,998.09 and 427,957,518.63

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Solution

The fourth proportional to 762,561,743.79, 1,052,250,998.09 and 427,957,518.63 is: 590,534,117.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,561,743.79 : 1,052,250,998.09 = 427,957,518.63 : x
  2. Step 2: Convert to fraction form
    762,561,743.79/1,052,250,998.09 = 427,957,518.63/x
  3. Step 3: Cross multiply
    762,561,743.79x = 1,052,250,998.09 × 427,957,518.63
  4. Step 4: Simplify right side
    762,561,743.79x = 450,318,726,116,397,504
  5. Step 5: Solve for x
    x = 450,318,726,116,397,504/762,561,743.79
  6. Step 6: Final answer
    x = 590,534,117.12

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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.