Home / 128,006,969.02-176,650,082.58-69,269,628.04

Finding the Fourth Proportional to 128,006,969.02, 176,650,082.58 and 69,269,628.04

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Solution

The fourth proportional to 128,006,969.02, 176,650,082.58 and 69,269,628.04 is: 95,592,338.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,006,969.02 : 176,650,082.58 = 69,269,628.04 : x
  2. Step 2: Convert to fraction form
    128,006,969.02/176,650,082.58 = 69,269,628.04/x
  3. Step 3: Cross multiply
    128,006,969.02x = 176,650,082.58 × 69,269,628.04
  4. Step 4: Simplify right side
    128,006,969.02x = 12,236,485,513,551,886
  5. Step 5: Solve for x
    x = 12,236,485,513,551,886/128,006,969.02
  6. Step 6: Final answer
    x = 95,592,338.50

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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.