Home / 1,638,752,535.40-2,458,128,803.10-1,611,542,756.20

Finding the Fourth Proportional to 1,638,752,535.40, 2,458,128,803.10 and 1,611,542,756.20

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Solution

The fourth proportional to 1,638,752,535.40, 2,458,128,803.10 and 1,611,542,756.20 is: 2,417,314,134.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,752,535.40 : 2,458,128,803.10 = 1,611,542,756.20 : x
  2. Step 2: Convert to fraction form
    1,638,752,535.40/2,458,128,803.10 = 1,611,542,756.20/x
  3. Step 3: Cross multiply
    1,638,752,535.40x = 2,458,128,803.10 × 1,611,542,756.20
  4. Step 4: Simplify right side
    1,638,752,535.40x = 3,961,379,666,442,381,312
  5. Step 5: Solve for x
    x = 3,961,379,666,442,381,312/1,638,752,535.40
  6. Step 6: Final answer
    x = 2,417,314,134.30

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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.