Home / 680,881,648.36-939,674,572.52-383,582,268.04

Finding the Fourth Proportional to 680,881,648.36, 939,674,572.52 and 383,582,268.04

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Solution

The fourth proportional to 680,881,648.36, 939,674,572.52 and 383,582,268.04 is: 529,376,147.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,881,648.36 : 939,674,572.52 = 383,582,268.04 : x
  2. Step 2: Convert to fraction form
    680,881,648.36/939,674,572.52 = 383,582,268.04/x
  3. Step 3: Cross multiply
    680,881,648.36x = 939,674,572.52 × 383,582,268.04
  4. Step 4: Simplify right side
    680,881,648.36x = 360,442,503,746,739,072
  5. Step 5: Solve for x
    x = 360,442,503,746,739,072/680,881,648.36
  6. Step 6: Final answer
    x = 529,376,147.26

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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.