Home / 518,989,145.92-712,390,001.44-458,936,031.04

Finding the Fourth Proportional to 518,989,145.92, 712,390,001.44 and 458,936,031.04

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Solution

The fourth proportional to 518,989,145.92, 712,390,001.44 and 458,936,031.04 is: 629,958,145.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,989,145.92 : 712,390,001.44 = 458,936,031.04 : x
  2. Step 2: Convert to fraction form
    518,989,145.92/712,390,001.44 = 458,936,031.04/x
  3. Step 3: Cross multiply
    518,989,145.92x = 712,390,001.44 × 458,936,031.04
  4. Step 4: Simplify right side
    518,989,145.92x = 326,941,439,813,453,504
  5. Step 5: Solve for x
    x = 326,941,439,813,453,504/518,989,145.92
  6. Step 6: Final answer
    x = 629,958,145.34

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.