Home / 1,638,280,824.25-2,459,170,007.87-706,063,724.70

Finding the Fourth Proportional to 1,638,280,824.25, 2,459,170,007.87 and 706,063,724.70

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Solution

The fourth proportional to 1,638,280,824.25, 2,459,170,007.87 and 706,063,724.70 is: 1,059,849,269.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,280,824.25 : 2,459,170,007.87 = 706,063,724.70 : x
  2. Step 2: Convert to fraction form
    1,638,280,824.25/2,459,170,007.87 = 706,063,724.70/x
  3. Step 3: Cross multiply
    1,638,280,824.25x = 2,459,170,007.87 × 706,063,724.70
  4. Step 4: Simplify right side
    1,638,280,824.25x = 1,736,330,735,422,342,144
  5. Step 5: Solve for x
    x = 1,736,330,735,422,342,144/1,638,280,824.25
  6. Step 6: Final answer
    x = 1,059,849,269.87

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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.