Home / 385,456,978,621.50-531,943,387,307.01-211,848,271,719.51

Finding the Fourth Proportional to 385,456,978,621.50, 531,943,387,307.01 and 211,848,271,719.51

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Solution

The fourth proportional to 385,456,978,621.50, 531,943,387,307.01 and 211,848,271,719.51 is: 292,357,626,152.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,456,978,621.50 : 531,943,387,307.01 = 211,848,271,719.51 : x
  2. Step 2: Convert to fraction form
    385,456,978,621.50/531,943,387,307.01 = 211,848,271,719.51/x
  3. Step 3: Cross multiply
    385,456,978,621.50x = 531,943,387,307.01 × 211,848,271,719.51
  4. Step 4: Simplify right side
    385,456,978,621.50x = 112,691,287,253,612,006,211,584
  5. Step 5: Solve for x
    x = 112,691,287,253,612,006,211,584/385,456,978,621.50
  6. Step 6: Final answer
    x = 292,357,626,152.28

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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.