Home / 1,678,542,352.64-2,316,395,648.12-915,603,048.80

Finding the Fourth Proportional to 1,678,542,352.64, 2,316,395,648.12 and 915,603,048.80

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Solution

The fourth proportional to 1,678,542,352.64, 2,316,395,648.12 and 915,603,048.80 is: 1,263,536,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,542,352.64 : 2,316,395,648.12 = 915,603,048.80 : x
  2. Step 2: Convert to fraction form
    1,678,542,352.64/2,316,395,648.12 = 915,603,048.80/x
  3. Step 3: Cross multiply
    1,678,542,352.64x = 2,316,395,648.12 × 915,603,048.80
  4. Step 4: Simplify right side
    1,678,542,352.64x = 2,120,898,917,645,723,648
  5. Step 5: Solve for x
    x = 2,120,898,917,645,723,648/1,678,542,352.64
  6. Step 6: Final answer
    x = 1,263,536,135.57

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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.