Home / 287,724,091.20-431,586,136.80-287,724,091.20

Finding the Fourth Proportional to 287,724,091.20, 431,586,136.80 and 287,724,091.20

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Solution

The fourth proportional to 287,724,091.20, 431,586,136.80 and 287,724,091.20 is: 431,586,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,724,091.20 : 431,586,136.80 = 287,724,091.20 : x
  2. Step 2: Convert to fraction form
    287,724,091.20/431,586,136.80 = 287,724,091.20/x
  3. Step 3: Cross multiply
    287,724,091.20x = 431,586,136.80 × 287,724,091.20
  4. Step 4: Simplify right side
    287,724,091.20x = 124,177,728,985,298,880
  5. Step 5: Solve for x
    x = 124,177,728,985,298,880/287,724,091.20
  6. Step 6: Final answer
    x = 431,586,136.80

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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.