Home / 1,260,422,653.40-1,892,580,399.30-687,113,725.40

Finding the Fourth Proportional to 1,260,422,653.40, 1,892,580,399.30 and 687,113,725.40

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Solution

The fourth proportional to 1,260,422,653.40, 1,892,580,399.30 and 687,113,725.40 is: 1,031,731,669.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,422,653.40 : 1,892,580,399.30 = 687,113,725.40 : x
  2. Step 2: Convert to fraction form
    1,260,422,653.40/1,892,580,399.30 = 687,113,725.40/x
  3. Step 3: Cross multiply
    1,260,422,653.40x = 1,892,580,399.30 × 687,113,725.40
  4. Step 4: Simplify right side
    1,260,422,653.40x = 1,300,417,968,782,042,368
  5. Step 5: Solve for x
    x = 1,300,417,968,782,042,368/1,260,422,653.40
  6. Step 6: Final answer
    x = 1,031,731,669.75

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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.