Home / 128,403,846,019.40-192,605,769,029.10-92,956,306,166.60

Finding the Fourth Proportional to 128,403,846,019.40, 192,605,769,029.10 and 92,956,306,166.60

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Solution

The fourth proportional to 128,403,846,019.40, 192,605,769,029.10 and 92,956,306,166.60 is: 139,434,459,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,403,846,019.40 : 192,605,769,029.10 = 92,956,306,166.60 : x
  2. Step 2: Convert to fraction form
    128,403,846,019.40/192,605,769,029.10 = 92,956,306,166.60/x
  3. Step 3: Cross multiply
    128,403,846,019.40x = 192,605,769,029.10 × 92,956,306,166.60
  4. Step 4: Simplify right side
    128,403,846,019.40x = 17,903,920,835,322,464,698,368
  5. Step 5: Solve for x
    x = 17,903,920,835,322,464,698,368/128,403,846,019.40
  6. Step 6: Final answer
    x = 139,434,459,249.90

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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.