Home / 128,009,445.83-176,653,035.47-69,272,110.92

Finding the Fourth Proportional to 128,009,445.83, 176,653,035.47 and 69,272,110.92

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Solution

The fourth proportional to 128,009,445.83, 176,653,035.47 and 69,272,110.92 is: 95,595,513.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,009,445.83 : 176,653,035.47 = 69,272,110.92 : x
  2. Step 2: Convert to fraction form
    128,009,445.83/176,653,035.47 = 69,272,110.92/x
  3. Step 3: Cross multiply
    128,009,445.83x = 176,653,035.47 × 69,272,110.92
  4. Step 4: Simplify right side
    128,009,445.83x = 12,237,128,667,086,174
  5. Step 5: Solve for x
    x = 12,237,128,667,086,174/128,009,445.83
  6. Step 6: Final answer
    x = 95,595,513.19

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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.