Home / 647,034,935.40-970,552,403.10-210,334,775.40

Finding the Fourth Proportional to 647,034,935.40, 970,552,403.10 and 210,334,775.40

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Solution

The fourth proportional to 647,034,935.40, 970,552,403.10 and 210,334,775.40 is: 315,502,163.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,034,935.40 : 970,552,403.10 = 210,334,775.40 : x
  2. Step 2: Convert to fraction form
    647,034,935.40/970,552,403.10 = 210,334,775.40/x
  3. Step 3: Cross multiply
    647,034,935.40x = 970,552,403.10 × 210,334,775.40
  4. Step 4: Simplify right side
    647,034,935.40x = 204,140,921,719,968,768
  5. Step 5: Solve for x
    x = 204,140,921,719,968,768/647,034,935.40
  6. Step 6: Final answer
    x = 315,502,163.10

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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.