Home / 129,128,993.36-178,191,570.48-73,367,048.24

Finding the Fourth Proportional to 129,128,993.36, 178,191,570.48 and 73,367,048.24

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Solution

The fourth proportional to 129,128,993.36, 178,191,570.48 and 73,367,048.24 is: 101,242,867.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,128,993.36 : 178,191,570.48 = 73,367,048.24 : x
  2. Step 2: Convert to fraction form
    129,128,993.36/178,191,570.48 = 73,367,048.24/x
  3. Step 3: Cross multiply
    129,128,993.36x = 178,191,570.48 × 73,367,048.24
  4. Step 4: Simplify right side
    129,128,993.36x = 13,073,389,547,367,518
  5. Step 5: Solve for x
    x = 13,073,389,547,367,518/129,128,993.36
  6. Step 6: Final answer
    x = 101,242,867.36

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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.