Home / 1,638,806,507.70-2,458,209,761.55-1,466,619,623.70

Finding the Fourth Proportional to 1,638,806,507.70, 2,458,209,761.55 and 1,466,619,623.70

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Solution

The fourth proportional to 1,638,806,507.70, 2,458,209,761.55 and 1,466,619,623.70 is: 2,199,929,435.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,806,507.70 : 2,458,209,761.55 = 1,466,619,623.70 : x
  2. Step 2: Convert to fraction form
    1,638,806,507.70/2,458,209,761.55 = 1,466,619,623.70/x
  3. Step 3: Cross multiply
    1,638,806,507.70x = 2,458,209,761.55 × 1,466,619,623.70
  4. Step 4: Simplify right side
    1,638,806,507.70x = 3,605,258,675,460,128,256
  5. Step 5: Solve for x
    x = 3,605,258,675,460,128,256/1,638,806,507.70
  6. Step 6: Final answer
    x = 2,199,929,435.55

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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.