Home / 128,896,099,398.32-177,868,602,508.34-71,021,240,479.32

Finding the Fourth Proportional to 128,896,099,398.32, 177,868,602,508.34 and 71,021,240,479.32

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Solution

The fourth proportional to 128,896,099,398.32, 177,868,602,508.34 and 71,021,240,479.32 is: 98,004,895,814.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,896,099,398.32 : 177,868,602,508.34 = 71,021,240,479.32 : x
  2. Step 2: Convert to fraction form
    128,896,099,398.32/177,868,602,508.34 = 71,021,240,479.32/x
  3. Step 3: Cross multiply
    128,896,099,398.32x = 177,868,602,508.34 × 71,021,240,479.32
  4. Step 4: Simplify right side
    128,896,099,398.32x = 12,632,448,792,464,505,962,496
  5. Step 5: Solve for x
    x = 12,632,448,792,464,505,962,496/128,896,099,398.32
  6. Step 6: Final answer
    x = 98,004,895,814.78

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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.