Home / 128,011,062.64-176,655,261-69,273,729.58

Finding the Fourth Proportional to 128,011,062.64, 176,655,261 and 69,273,729.58

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Solution

The fourth proportional to 128,011,062.64, 176,655,261 and 69,273,729.58 is: 95,597,743.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,011,062.64 : 176,655,261 = 69,273,729.58 : x
  2. Step 2: Convert to fraction form
    128,011,062.64/176,655,261 = 69,273,729.58/x
  3. Step 3: Cross multiply
    128,011,062.64x = 176,655,261 × 69,273,729.58
  4. Step 4: Simplify right side
    128,011,062.64x = 12,237,568,779,398,320
  5. Step 5: Solve for x
    x = 12,237,568,779,398,320/128,011,062.64
  6. Step 6: Final answer
    x = 95,597,743.87

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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.