Home / 684,128,913.40-1,026,183,747.30-166,560,491.80

Finding the Fourth Proportional to 684,128,913.40, 1,026,183,747.30 and 166,560,491.80

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Solution

The fourth proportional to 684,128,913.40, 1,026,183,747.30 and 166,560,491.80 is: 249,838,394.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,128,913.40 : 1,026,183,747.30 = 166,560,491.80 : x
  2. Step 2: Convert to fraction form
    684,128,913.40/1,026,183,747.30 = 166,560,491.80/x
  3. Step 3: Cross multiply
    684,128,913.40x = 1,026,183,747.30 × 166,560,491.80
  4. Step 4: Simplify right side
    684,128,913.40x = 170,921,669,627,454,912
  5. Step 5: Solve for x
    x = 170,921,669,627,454,912/684,128,913.40
  6. Step 6: Final answer
    x = 249,838,394.90

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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.