Home / 1,638,836,085.80-2,458,254,128.70-719,153,013.80

Finding the Fourth Proportional to 1,638,836,085.80, 2,458,254,128.70 and 719,153,013.80

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Solution

The fourth proportional to 1,638,836,085.80, 2,458,254,128.70 and 719,153,013.80 is: 1,078,729,520.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,836,085.80 : 2,458,254,128.70 = 719,153,013.80 : x
  2. Step 2: Convert to fraction form
    1,638,836,085.80/2,458,254,128.70 = 719,153,013.80/x
  3. Step 3: Cross multiply
    1,638,836,085.80x = 2,458,254,128.70 × 719,153,013.80
  4. Step 4: Simplify right side
    1,638,836,085.80x = 1,767,860,865,340,897,792
  5. Step 5: Solve for x
    x = 1,767,860,865,340,897,792/1,638,836,085.80
  6. Step 6: Final answer
    x = 1,078,729,520.70

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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.