Home / 130,340,718.72-179,872,034.04-71,608,811.76

Finding the Fourth Proportional to 130,340,718.72, 179,872,034.04 and 71,608,811.76

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Solution

The fourth proportional to 130,340,718.72, 179,872,034.04 and 71,608,811.76 is: 98,821,172.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,340,718.72 : 179,872,034.04 = 71,608,811.76 : x
  2. Step 2: Convert to fraction form
    130,340,718.72/179,872,034.04 = 71,608,811.76/x
  3. Step 3: Cross multiply
    130,340,718.72x = 179,872,034.04 × 71,608,811.76
  4. Step 4: Simplify right side
    130,340,718.72x = 12,880,422,626,458,672
  5. Step 5: Solve for x
    x = 12,880,422,626,458,672/130,340,718.72
  6. Step 6: Final answer
    x = 98,821,172.33

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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.