Home / 812,740,319.06-1,121,674,683.72-455,604,554.50

Finding the Fourth Proportional to 812,740,319.06, 1,121,674,683.72 and 455,604,554.50

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Solution

The fourth proportional to 812,740,319.06, 1,121,674,683.72 and 455,604,554.50 is: 628,786,443.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,740,319.06 : 1,121,674,683.72 = 455,604,554.50 : x
  2. Step 2: Convert to fraction form
    812,740,319.06/1,121,674,683.72 = 455,604,554.50/x
  3. Step 3: Cross multiply
    812,740,319.06x = 1,121,674,683.72 × 455,604,554.50
  4. Step 4: Simplify right side
    812,740,319.06x = 511,040,094,570,179,008
  5. Step 5: Solve for x
    x = 511,040,094,570,179,008/812,740,319.06
  6. Step 6: Final answer
    x = 628,786,443.33

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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.