Home / 130,149,697.78-179,612,195.07-77,928,752.35

Finding the Fourth Proportional to 130,149,697.78, 179,612,195.07 and 77,928,752.35

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Solution

The fourth proportional to 130,149,697.78, 179,612,195.07 and 77,928,752.35 is: 107,545,038.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,149,697.78 : 179,612,195.07 = 77,928,752.35 : x
  2. Step 2: Convert to fraction form
    130,149,697.78/179,612,195.07 = 77,928,752.35/x
  3. Step 3: Cross multiply
    130,149,697.78x = 179,612,195.07 × 77,928,752.35
  4. Step 4: Simplify right side
    130,149,697.78x = 13,996,954,268,649,920
  5. Step 5: Solve for x
    x = 13,996,954,268,649,920/130,149,697.78
  6. Step 6: Final answer
    x = 107,545,038.58

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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.