Home / 399,450,692.89-551,258,980.32-223,238,683.06

Finding the Fourth Proportional to 399,450,692.89, 551,258,980.32 and 223,238,683.06

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Solution

The fourth proportional to 399,450,692.89, 551,258,980.32 and 223,238,683.06 is: 308,078,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,450,692.89 : 551,258,980.32 = 223,238,683.06 : x
  2. Step 2: Convert to fraction form
    399,450,692.89/551,258,980.32 = 223,238,683.06/x
  3. Step 3: Cross multiply
    399,450,692.89x = 551,258,980.32 × 223,238,683.06
  4. Step 4: Simplify right side
    399,450,692.89x = 123,062,328,791,635,264
  5. Step 5: Solve for x
    x = 123,062,328,791,635,264/399,450,692.89
  6. Step 6: Final answer
    x = 308,078,896.80

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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.