Home / 556,717,890.96-768,270,665.16-309,222,274.32

Finding the Fourth Proportional to 556,717,890.96, 768,270,665.16 and 309,222,274.32

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Solution

The fourth proportional to 556,717,890.96, 768,270,665.16 and 309,222,274.32 is: 426,726,725.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,717,890.96 : 768,270,665.16 = 309,222,274.32 : x
  2. Step 2: Convert to fraction form
    556,717,890.96/768,270,665.16 = 309,222,274.32/x
  3. Step 3: Cross multiply
    556,717,890.96x = 768,270,665.16 × 309,222,274.32
  4. Step 4: Simplify right side
    556,717,890.96x = 237,566,402,374,114,368
  5. Step 5: Solve for x
    x = 237,566,402,374,114,368/556,717,890.96
  6. Step 6: Final answer
    x = 426,726,725.03

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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.