Home / 510,039,547.89-765,056,777.29-199,178,748.64

Finding the Fourth Proportional to 510,039,547.89, 765,056,777.29 and 199,178,748.64

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Solution

The fourth proportional to 510,039,547.89, 765,056,777.29 and 199,178,748.64 is: 298,767,129.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,039,547.89 : 765,056,777.29 = 199,178,748.64 : x
  2. Step 2: Convert to fraction form
    510,039,547.89/765,056,777.29 = 199,178,748.64/x
  3. Step 3: Cross multiply
    510,039,547.89x = 765,056,777.29 × 199,178,748.64
  4. Step 4: Simplify right side
    510,039,547.89x = 152,383,051,539,173,344
  5. Step 5: Solve for x
    x = 152,383,051,539,173,344/510,039,547.89
  6. Step 6: Final answer
    x = 298,767,129.27

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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.