Home / 56,842,081,666.32-78,438,965,039.04-31,116,384,919.92

Finding the Fourth Proportional to 56,842,081,666.32, 78,438,965,039.04 and 31,116,384,919.92

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Solution

The fourth proportional to 56,842,081,666.32, 78,438,965,039.04 and 31,116,384,919.92 is: 42,938,909,999.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,842,081,666.32 : 78,438,965,039.04 = 31,116,384,919.92 : x
  2. Step 2: Convert to fraction form
    56,842,081,666.32/78,438,965,039.04 = 31,116,384,919.92/x
  3. Step 3: Cross multiply
    56,842,081,666.32x = 78,438,965,039.04 × 31,116,384,919.92
  4. Step 4: Simplify right side
    56,842,081,666.32x = 2,440,737,028,874,915,807,232
  5. Step 5: Solve for x
    x = 2,440,737,028,874,915,807,232/56,842,081,666.32
  6. Step 6: Final answer
    x = 42,938,909,999.86

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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.