Home / 536,039,809.60-804,059,714.40-428,544,385.60

Finding the Fourth Proportional to 536,039,809.60, 804,059,714.40 and 428,544,385.60

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Solution

The fourth proportional to 536,039,809.60, 804,059,714.40 and 428,544,385.60 is: 642,816,578.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,039,809.60 : 804,059,714.40 = 428,544,385.60 : x
  2. Step 2: Convert to fraction form
    536,039,809.60/804,059,714.40 = 428,544,385.60/x
  3. Step 3: Cross multiply
    536,039,809.60x = 804,059,714.40 × 428,544,385.60
  4. Step 4: Simplify right side
    536,039,809.60x = 344,575,276,293,259,456
  5. Step 5: Solve for x
    x = 344,575,276,293,259,456/536,039,809.60
  6. Step 6: Final answer
    x = 642,816,578.40

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Similar ratio
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1.5x scale

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.