Home / 400,721,131.80-599,806,239.30-285,929,875.80

Finding the Fourth Proportional to 400,721,131.80, 599,806,239.30 and 285,929,875.80

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Solution

The fourth proportional to 400,721,131.80, 599,806,239.30 and 285,929,875.80 is: 427,984,725.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,721,131.80 : 599,806,239.30 = 285,929,875.80 : x
  2. Step 2: Convert to fraction form
    400,721,131.80/599,806,239.30 = 285,929,875.80/x
  3. Step 3: Cross multiply
    400,721,131.80x = 599,806,239.30 × 285,929,875.80
  4. Step 4: Simplify right side
    400,721,131.80x = 171,502,523,507,114,080
  5. Step 5: Solve for x
    x = 171,502,523,507,114,080/400,721,131.80
  6. Step 6: Final answer
    x = 427,984,725.28

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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.