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Finding the Fourth Proportional to 551,376,817.97, 760,877,855.65 and 300,475,881.95

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Solution

The fourth proportional to 551,376,817.97, 760,877,855.65 and 300,475,881.95 is: 414,644,644.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,376,817.97 : 760,877,855.65 = 300,475,881.95 : x
  2. Step 2: Convert to fraction form
    551,376,817.97/760,877,855.65 = 300,475,881.95/x
  3. Step 3: Cross multiply
    551,376,817.97x = 760,877,855.65 × 300,475,881.95
  4. Step 4: Simplify right side
    551,376,817.97x = 228,625,444,732,658,528
  5. Step 5: Solve for x
    x = 228,625,444,732,658,528/551,376,817.97
  6. Step 6: Final answer
    x = 414,644,644.61

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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.