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Finding the Fourth Proportional to 551,400,878.20, 773,898,331.93 and 551,400,878.20

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Solution

The fourth proportional to 551,400,878.20, 773,898,331.93 and 551,400,878.20 is: 773,898,331.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,400,878.20 : 773,898,331.93 = 551,400,878.20 : x
  2. Step 2: Convert to fraction form
    551,400,878.20/773,898,331.93 = 551,400,878.20/x
  3. Step 3: Cross multiply
    551,400,878.20x = 773,898,331.93 × 551,400,878.20
  4. Step 4: Simplify right side
    551,400,878.20x = 426,728,219,863,717,120
  5. Step 5: Solve for x
    x = 426,728,219,863,717,120/551,400,878.20
  6. Step 6: Final answer
    x = 773,898,331.93

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.