Home / 128,288,533,824.29-177,038,351,992.39-69,627,356,706.87

Finding the Fourth Proportional to 128,288,533,824.29, 177,038,351,992.39 and 69,627,356,706.87

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Solution

The fourth proportional to 128,288,533,824.29, 177,038,351,992.39 and 69,627,356,706.87 is: 96,085,847,405.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,288,533,824.29 : 177,038,351,992.39 = 69,627,356,706.87 : x
  2. Step 2: Convert to fraction form
    128,288,533,824.29/177,038,351,992.39 = 69,627,356,706.87/x
  3. Step 3: Cross multiply
    128,288,533,824.29x = 177,038,351,992.39 × 69,627,356,706.87
  4. Step 4: Simplify right side
    128,288,533,824.29x = 12,326,712,484,970,547,380,224
  5. Step 5: Solve for x
    x = 12,326,712,484,970,547,380,224/128,288,533,824.29
  6. Step 6: Final answer
    x = 96,085,847,405.92

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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.