Home / 2,155,200,637.20-3,232,800,955.80-1,638,639,985.20

Finding the Fourth Proportional to 2,155,200,637.20, 3,232,800,955.80 and 1,638,639,985.20

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Solution

The fourth proportional to 2,155,200,637.20, 3,232,800,955.80 and 1,638,639,985.20 is: 2,457,959,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,200,637.20 : 3,232,800,955.80 = 1,638,639,985.20 : x
  2. Step 2: Convert to fraction form
    2,155,200,637.20/3,232,800,955.80 = 1,638,639,985.20/x
  3. Step 3: Cross multiply
    2,155,200,637.20x = 3,232,800,955.80 × 1,638,639,985.20
  4. Step 4: Simplify right side
    2,155,200,637.20x = 5,297,396,910,366,658,560
  5. Step 5: Solve for x
    x = 5,297,396,910,366,658,560/2,155,200,637.20
  6. Step 6: Final answer
    x = 2,457,959,977.80

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Double scale
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1.5x scale

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.