Home / 128,520,764.83-177,358,655.46-73,516,621.33

Finding the Fourth Proportional to 128,520,764.83, 177,358,655.46 and 73,516,621.33

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Solution

The fourth proportional to 128,520,764.83, 177,358,655.46 and 73,516,621.33 is: 101,452,937.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,520,764.83 : 177,358,655.46 = 73,516,621.33 : x
  2. Step 2: Convert to fraction form
    128,520,764.83/177,358,655.46 = 73,516,621.33/x
  3. Step 3: Cross multiply
    128,520,764.83x = 177,358,655.46 × 73,516,621.33
  4. Step 4: Simplify right side
    128,520,764.83x = 13,038,809,113,050,758
  5. Step 5: Solve for x
    x = 13,038,809,113,050,758/128,520,764.83
  6. Step 6: Final answer
    x = 101,452,937.43

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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.