Home / 128,006,899.73-176,649,986.60-69,269,558.47

Finding the Fourth Proportional to 128,006,899.73, 176,649,986.60 and 69,269,558.47

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Solution

The fourth proportional to 128,006,899.73, 176,649,986.60 and 69,269,558.47 is: 95,592,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,006,899.73 : 176,649,986.60 = 69,269,558.47 : x
  2. Step 2: Convert to fraction form
    128,006,899.73/176,649,986.60 = 69,269,558.47/x
  3. Step 3: Cross multiply
    128,006,899.73x = 176,649,986.60 × 69,269,558.47
  4. Step 4: Simplify right side
    128,006,899.73x = 12,236,466,575,513,416
  5. Step 5: Solve for x
    x = 12,236,466,575,513,416/128,006,899.73
  6. Step 6: Final answer
    x = 95,592,242.30

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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.