Home / 385,365,261.54-531,804,587.58-209,153,259.60

Finding the Fourth Proportional to 385,365,261.54, 531,804,587.58 and 209,153,259.60

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Solution

The fourth proportional to 385,365,261.54, 531,804,587.58 and 209,153,259.60 is: 288,631,784.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,365,261.54 : 531,804,587.58 = 209,153,259.60 : x
  2. Step 2: Convert to fraction form
    385,365,261.54/531,804,587.58 = 209,153,259.60/x
  3. Step 3: Cross multiply
    385,365,261.54x = 531,804,587.58 × 209,153,259.60
  4. Step 4: Simplify right side
    385,365,261.54x = 111,228,662,962,590,672
  5. Step 5: Solve for x
    x = 111,228,662,962,590,672/385,365,261.54
  6. Step 6: Final answer
    x = 288,631,784.08

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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.