Home / 130,886,786.88-180,622,294.08-71,346,778.32

Finding the Fourth Proportional to 130,886,786.88, 180,622,294.08 and 71,346,778.32

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Solution

The fourth proportional to 130,886,786.88, 180,622,294.08 and 71,346,778.32 is: 98,457,751.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,886,786.88 : 180,622,294.08 = 71,346,778.32 : x
  2. Step 2: Convert to fraction form
    130,886,786.88/180,622,294.08 = 71,346,778.32/x
  3. Step 3: Cross multiply
    130,886,786.88x = 180,622,294.08 × 71,346,778.32
  4. Step 4: Simplify right side
    130,886,786.88x = 12,886,818,775,375,608
  5. Step 5: Solve for x
    x = 12,886,818,775,375,608/130,886,786.88
  6. Step 6: Final answer
    x = 98,457,751.79

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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.