Home / 1,271,975,181.17-1,907,963,437.37-398,644,567.74

Finding the Fourth Proportional to 1,271,975,181.17, 1,907,963,437.37 and 398,644,567.74

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Solution

The fourth proportional to 1,271,975,181.17, 1,907,963,437.37 and 398,644,567.74 is: 597,967,060.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,975,181.17 : 1,907,963,437.37 = 398,644,567.74 : x
  2. Step 2: Convert to fraction form
    1,271,975,181.17/1,907,963,437.37 = 398,644,567.74/x
  3. Step 3: Cross multiply
    1,271,975,181.17x = 1,907,963,437.37 × 398,644,567.74
  4. Step 4: Simplify right side
    1,271,975,181.17x = 760,599,259,752,094,976
  5. Step 5: Solve for x
    x = 760,599,259,752,094,976/1,271,975,181.17
  6. Step 6: Final answer
    x = 597,967,060.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.