Home / 1,678,542,351.64-2,316,395,646.74-915,603,047.80

Finding the Fourth Proportional to 1,678,542,351.64, 2,316,395,646.74 and 915,603,047.80

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Solution

The fourth proportional to 1,678,542,351.64, 2,316,395,646.74 and 915,603,047.80 is: 1,263,536,134.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,542,351.64 : 2,316,395,646.74 = 915,603,047.80 : x
  2. Step 2: Convert to fraction form
    1,678,542,351.64/2,316,395,646.74 = 915,603,047.80/x
  3. Step 3: Cross multiply
    1,678,542,351.64x = 2,316,395,646.74 × 915,603,047.80
  4. Step 4: Simplify right side
    1,678,542,351.64x = 2,120,898,914,065,795,840
  5. Step 5: Solve for x
    x = 2,120,898,914,065,795,840/1,678,542,351.64
  6. Step 6: Final answer
    x = 1,263,536,134.19

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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.