Home / 128,012,952.10-176,658,313.60-69,275,601.63

Finding the Fourth Proportional to 128,012,952.10, 176,658,313.60 and 69,275,601.63

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Solution

The fourth proportional to 128,012,952.10, 176,658,313.60 and 69,275,601.63 is: 95,600,568.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,012,952.10 : 176,658,313.60 = 69,275,601.63 : x
  2. Step 2: Convert to fraction form
    128,012,952.10/176,658,313.60 = 69,275,601.63/x
  3. Step 3: Cross multiply
    128,012,952.10x = 176,658,313.60 × 69,275,601.63
  4. Step 4: Simplify right side
    128,012,952.10x = 12,238,110,957,581,210
  5. Step 5: Solve for x
    x = 12,238,110,957,581,210/128,012,952.10
  6. Step 6: Final answer
    x = 95,600,568.20

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1.5x scale

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.