Home / 128,428,784,031.54-192,349,727,446.86-61,323,030,448.86

Finding the Fourth Proportional to 128,428,784,031.54, 192,349,727,446.86 and 61,323,030,448.86

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Solution

The fourth proportional to 128,428,784,031.54, 192,349,727,446.86 and 61,323,030,448.86 is: 91,844,427,882.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,428,784,031.54 : 192,349,727,446.86 = 61,323,030,448.86 : x
  2. Step 2: Convert to fraction form
    128,428,784,031.54/192,349,727,446.86 = 61,323,030,448.86/x
  3. Step 3: Cross multiply
    128,428,784,031.54x = 192,349,727,446.86 × 61,323,030,448.86
  4. Step 4: Simplify right side
    128,428,784,031.54x = 11,795,468,193,053,716,512,768
  5. Step 5: Solve for x
    x = 11,795,468,193,053,716,512,768/128,428,784,031.54
  6. Step 6: Final answer
    x = 91,844,427,882.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.