Home / 128,520,763.83-177,358,654.08-73,516,620.33

Finding the Fourth Proportional to 128,520,763.83, 177,358,654.08 and 73,516,620.33

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Solution

The fourth proportional to 128,520,763.83, 177,358,654.08 and 73,516,620.33 is: 101,452,936.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,520,763.83 : 177,358,654.08 = 73,516,620.33 : x
  2. Step 2: Convert to fraction form
    128,520,763.83/177,358,654.08 = 73,516,620.33/x
  3. Step 3: Cross multiply
    128,520,763.83x = 177,358,654.08 × 73,516,620.33
  4. Step 4: Simplify right side
    128,520,763.83x = 13,038,808,834,113,024
  5. Step 5: Solve for x
    x = 13,038,808,834,113,024/128,520,763.83
  6. Step 6: Final answer
    x = 101,452,936.05

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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.