Home / 400,721,200.80-599,806,342.80-285,929,944.80

Finding the Fourth Proportional to 400,721,200.80, 599,806,342.80 and 285,929,944.80

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Solution

The fourth proportional to 400,721,200.80, 599,806,342.80 and 285,929,944.80 is: 427,984,828.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,721,200.80 : 599,806,342.80 = 285,929,944.80 : x
  2. Step 2: Convert to fraction form
    400,721,200.80/599,806,342.80 = 285,929,944.80/x
  3. Step 3: Cross multiply
    400,721,200.80x = 599,806,342.80 × 285,929,944.80
  4. Step 4: Simplify right side
    400,721,200.80x = 171,502,594,487,493,856
  5. Step 5: Solve for x
    x = 171,502,594,487,493,856/400,721,200.80
  6. Step 6: Final answer
    x = 427,984,828.72

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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.