Home / 655,215,739.10-903,598,878.86-512,180,399.10

Finding the Fourth Proportional to 655,215,739.10, 903,598,878.86 and 512,180,399.10

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Solution

The fourth proportional to 655,215,739.10, 903,598,878.86 and 512,180,399.10 is: 706,340,838.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,215,739.10 : 903,598,878.86 = 512,180,399.10 : x
  2. Step 2: Convert to fraction form
    655,215,739.10/903,598,878.86 = 512,180,399.10/x
  3. Step 3: Cross multiply
    655,215,739.10x = 903,598,878.86 × 512,180,399.10
  4. Step 4: Simplify right side
    655,215,739.10x = 462,805,634,400,827,392
  5. Step 5: Solve for x
    x = 462,805,634,400,827,392/655,215,739.10
  6. Step 6: Final answer
    x = 706,340,838.27

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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.