Home / 1,412,893,823.76-1,949,759,064.90-777,809,153.88

Finding the Fourth Proportional to 1,412,893,823.76, 1,949,759,064.90 and 777,809,153.88

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Solution

The fourth proportional to 1,412,893,823.76, 1,949,759,064.90 and 777,809,153.88 is: 1,073,357,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,893,823.76 : 1,949,759,064.90 = 777,809,153.88 : x
  2. Step 2: Convert to fraction form
    1,412,893,823.76/1,949,759,064.90 = 777,809,153.88/x
  3. Step 3: Cross multiply
    1,412,893,823.76x = 1,949,759,064.90 × 777,809,153.88
  4. Step 4: Simplify right side
    1,412,893,823.76x = 1,516,540,448,539,729,152
  5. Step 5: Solve for x
    x = 1,516,540,448,539,729,152/1,412,893,823.76
  6. Step 6: Final answer
    x = 1,073,357,688.34

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Double scale
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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.