Home / 812,740,329.08-1,121,674,697.52-455,604,564.52

Finding the Fourth Proportional to 812,740,329.08, 1,121,674,697.52 and 455,604,564.52

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Solution

The fourth proportional to 812,740,329.08, 1,121,674,697.52 and 455,604,564.52 is: 628,786,457.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,740,329.08 : 1,121,674,697.52 = 455,604,564.52 : x
  2. Step 2: Convert to fraction form
    812,740,329.08/1,121,674,697.52 = 455,604,564.52/x
  3. Step 3: Cross multiply
    812,740,329.08x = 1,121,674,697.52 × 455,604,564.52
  4. Step 4: Simplify right side
    812,740,329.08x = 511,040,112,096,702,272
  5. Step 5: Solve for x
    x = 511,040,112,096,702,272/812,740,329.08
  6. Step 6: Final answer
    x = 628,786,457.14

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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.