Home / 790,712,784.42-1,186,605,018.76-324,458,501.36

Finding the Fourth Proportional to 790,712,784.42, 1,186,605,018.76 and 324,458,501.36

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Solution

The fourth proportional to 790,712,784.42, 1,186,605,018.76 and 324,458,501.36 is: 486,907,627.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,712,784.42 : 1,186,605,018.76 = 324,458,501.36 : x
  2. Step 2: Convert to fraction form
    790,712,784.42/1,186,605,018.76 = 324,458,501.36/x
  3. Step 3: Cross multiply
    790,712,784.42x = 1,186,605,018.76 × 324,458,501.36
  4. Step 4: Simplify right side
    790,712,784.42x = 385,004,086,093,124,288
  5. Step 5: Solve for x
    x = 385,004,086,093,124,288/790,712,784.42
  6. Step 6: Final answer
    x = 486,907,627.75

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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.