Home / 527,743,564.02-728,272,252.26-289,588,016.80

Finding the Fourth Proportional to 527,743,564.02, 728,272,252.26 and 289,588,016.80

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Solution

The fourth proportional to 527,743,564.02, 728,272,252.26 and 289,588,016.80 is: 399,623,854.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,743,564.02 : 728,272,252.26 = 289,588,016.80 : x
  2. Step 2: Convert to fraction form
    527,743,564.02/728,272,252.26 = 289,588,016.80/x
  3. Step 3: Cross multiply
    527,743,564.02x = 728,272,252.26 × 289,588,016.80
  4. Step 4: Simplify right side
    527,743,564.02x = 210,898,917,220,622,048
  5. Step 5: Solve for x
    x = 210,898,917,220,622,048/527,743,564.02
  6. Step 6: Final answer
    x = 399,623,854.46

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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.