Home / 989,385,491.61-1,365,347,016.43-537,259,420.23

Finding the Fourth Proportional to 989,385,491.61, 1,365,347,016.43 and 537,259,420.23

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Solution

The fourth proportional to 989,385,491.61, 1,365,347,016.43 and 537,259,420.23 is: 741,415,305.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,385,491.61 : 1,365,347,016.43 = 537,259,420.23 : x
  2. Step 2: Convert to fraction form
    989,385,491.61/1,365,347,016.43 = 537,259,420.23/x
  3. Step 3: Cross multiply
    989,385,491.61x = 1,365,347,016.43 × 537,259,420.23
  4. Step 4: Simplify right side
    989,385,491.61x = 733,545,546,462,670,080
  5. Step 5: Solve for x
    x = 733,545,546,462,670,080/989,385,491.61
  6. Step 6: Final answer
    x = 741,415,305.44

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Double scale
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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.