Home / 287,980,668.20-397,465,054.44-162,571,089.80

Finding the Fourth Proportional to 287,980,668.20, 397,465,054.44 and 162,571,089.80

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Solution

The fourth proportional to 287,980,668.20, 397,465,054.44 and 162,571,089.80 is: 224,377,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,980,668.20 : 397,465,054.44 = 162,571,089.80 : x
  2. Step 2: Convert to fraction form
    287,980,668.20/397,465,054.44 = 162,571,089.80/x
  3. Step 3: Cross multiply
    287,980,668.20x = 397,465,054.44 × 162,571,089.80
  4. Step 4: Simplify right side
    287,980,668.20x = 64,616,327,057,727,136
  5. Step 5: Solve for x
    x = 64,616,327,057,727,136/287,980,668.20
  6. Step 6: Final answer
    x = 224,377,307.90

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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.