Home / 744,291,005.40-1,114,735,896.90-438,180,989.40

Finding the Fourth Proportional to 744,291,005.40, 1,114,735,896.90 and 438,180,989.40

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Solution

The fourth proportional to 744,291,005.40, 1,114,735,896.90 and 438,180,989.40 is: 656,270,295.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,291,005.40 : 1,114,735,896.90 = 438,180,989.40 : x
  2. Step 2: Convert to fraction form
    744,291,005.40/1,114,735,896.90 = 438,180,989.40/x
  3. Step 3: Cross multiply
    744,291,005.40x = 1,114,735,896.90 × 438,180,989.40
  4. Step 4: Simplify right side
    744,291,005.40x = 488,456,078,223,338,432
  5. Step 5: Solve for x
    x = 488,456,078,223,338,432/744,291,005.40
  6. Step 6: Final answer
    x = 656,270,295.73

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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.