Home / 989,754,995.45-1,365,862,788.95-543,747,251.18

Finding the Fourth Proportional to 989,754,995.45, 1,365,862,788.95 and 543,747,251.18

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Solution

The fourth proportional to 989,754,995.45, 1,365,862,788.95 and 543,747,251.18 is: 750,371,698.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,754,995.45 : 1,365,862,788.95 = 543,747,251.18 : x
  2. Step 2: Convert to fraction form
    989,754,995.45/1,365,862,788.95 = 543,747,251.18/x
  3. Step 3: Cross multiply
    989,754,995.45x = 1,365,862,788.95 × 543,747,251.18
  4. Step 4: Simplify right side
    989,754,995.45x = 742,684,136,977,892,096
  5. Step 5: Solve for x
    x = 742,684,136,977,892,096/989,754,995.45
  6. Step 6: Final answer
    x = 750,371,698.44

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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.