Home / 739,791,928.42-1,020,914,066.82-405,257,107.72

Finding the Fourth Proportional to 739,791,928.42, 1,020,914,066.82 and 405,257,107.72

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Solution

The fourth proportional to 739,791,928.42, 1,020,914,066.82 and 405,257,107.72 is: 559,255,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,791,928.42 : 1,020,914,066.82 = 405,257,107.72 : x
  2. Step 2: Convert to fraction form
    739,791,928.42/1,020,914,066.82 = 405,257,107.72/x
  3. Step 3: Cross multiply
    739,791,928.42x = 1,020,914,066.82 × 405,257,107.72
  4. Step 4: Simplify right side
    739,791,928.42x = 413,732,681,950,136,064
  5. Step 5: Solve for x
    x = 413,732,681,950,136,064/739,791,928.42
  6. Step 6: Final answer
    x = 559,255,469.08

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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.