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Finding the Fourth Proportional to 504,998,893.64, 756,828,681.06 and 259,345,605.80

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Solution

The fourth proportional to 504,998,893.64, 756,828,681.06 and 259,345,605.80 is: 388,674,500.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,998,893.64 : 756,828,681.06 = 259,345,605.80 : x
  2. Step 2: Convert to fraction form
    504,998,893.64/756,828,681.06 = 259,345,605.80/x
  3. Step 3: Cross multiply
    504,998,893.64x = 756,828,681.06 × 259,345,605.80
  4. Step 4: Simplify right side
    504,998,893.64x = 196,280,192,776,320,672
  5. Step 5: Solve for x
    x = 196,280,192,776,320,672/504,998,893.64
  6. Step 6: Final answer
    x = 388,674,500.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.