Home / 630,435,322.40-945,652,983.60-388,570,618.40

Finding the Fourth Proportional to 630,435,322.40, 945,652,983.60 and 388,570,618.40

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Solution

The fourth proportional to 630,435,322.40, 945,652,983.60 and 388,570,618.40 is: 582,855,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,435,322.40 : 945,652,983.60 = 388,570,618.40 : x
  2. Step 2: Convert to fraction form
    630,435,322.40/945,652,983.60 = 388,570,618.40/x
  3. Step 3: Cross multiply
    630,435,322.40x = 945,652,983.60 × 388,570,618.40
  4. Step 4: Simplify right side
    630,435,322.40x = 367,452,964,629,257,024
  5. Step 5: Solve for x
    x = 367,452,964,629,257,024/630,435,322.40
  6. Step 6: Final answer
    x = 582,855,927.60

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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.