Home / 1,140,888,629.12-1,575,722,984.64-768,969,576.32

Finding the Fourth Proportional to 1,140,888,629.12, 1,575,722,984.64 and 768,969,576.32

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Solution

The fourth proportional to 1,140,888,629.12, 1,575,722,984.64 and 768,969,576.32 is: 1,062,051,987.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,888,629.12 : 1,575,722,984.64 = 768,969,576.32 : x
  2. Step 2: Convert to fraction form
    1,140,888,629.12/1,575,722,984.64 = 768,969,576.32/x
  3. Step 3: Cross multiply
    1,140,888,629.12x = 1,575,722,984.64 × 768,969,576.32
  4. Step 4: Simplify right side
    1,140,888,629.12x = 1,211,683,035,896,306,944
  5. Step 5: Solve for x
    x = 1,211,683,035,896,306,944/1,140,888,629.12
  6. Step 6: Final answer
    x = 1,062,051,987.35

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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.