Home / 1,375,269,999.34-1,898,037,145.47-810,882,631.66

Finding the Fourth Proportional to 1,375,269,999.34, 1,898,037,145.47 and 810,882,631.66

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Solution

The fourth proportional to 1,375,269,999.34, 1,898,037,145.47 and 810,882,631.66 is: 1,119,115,051.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,269,999.34 : 1,898,037,145.47 = 810,882,631.66 : x
  2. Step 2: Convert to fraction form
    1,375,269,999.34/1,898,037,145.47 = 810,882,631.66/x
  3. Step 3: Cross multiply
    1,375,269,999.34x = 1,898,037,145.47 × 810,882,631.66
  4. Step 4: Simplify right side
    1,375,269,999.34x = 1,539,085,355,507,147,776
  5. Step 5: Solve for x
    x = 1,539,085,355,507,147,776/1,375,269,999.34
  6. Step 6: Final answer
    x = 1,119,115,051.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.