Home / 130,815,768.35-180,469,040.33-77,862,782.07

Finding the Fourth Proportional to 130,815,768.35, 180,469,040.33 and 77,862,782.07

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Solution

The fourth proportional to 130,815,768.35, 180,469,040.33 and 77,862,782.07 is: 107,416,878.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,815,768.35 : 180,469,040.33 = 77,862,782.07 : x
  2. Step 2: Convert to fraction form
    130,815,768.35/180,469,040.33 = 77,862,782.07/x
  3. Step 3: Cross multiply
    130,815,768.35x = 180,469,040.33 × 77,862,782.07
  4. Step 4: Simplify right side
    130,815,768.35x = 14,051,821,557,791,488
  5. Step 5: Solve for x
    x = 14,051,821,557,791,488/130,815,768.35
  6. Step 6: Final answer
    x = 107,416,878.98

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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.