Home / 1,378,991,012.10-2,068,486,518.15-1,206,804,128.10

Finding the Fourth Proportional to 1,378,991,012.10, 2,068,486,518.15 and 1,206,804,128.10

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Solution

The fourth proportional to 1,378,991,012.10, 2,068,486,518.15 and 1,206,804,128.10 is: 1,810,206,192.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,991,012.10 : 2,068,486,518.15 = 1,206,804,128.10 : x
  2. Step 2: Convert to fraction form
    1,378,991,012.10/2,068,486,518.15 = 1,206,804,128.10/x
  3. Step 3: Cross multiply
    1,378,991,012.10x = 2,068,486,518.15 × 1,206,804,128.10
  4. Step 4: Simplify right side
    1,378,991,012.10x = 2,496,258,069,022,615,552
  5. Step 5: Solve for x
    x = 2,496,258,069,022,615,552/1,378,991,012.10
  6. Step 6: Final answer
    x = 1,810,206,192.15

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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.