Home / 431,373,928.40-647,060,892.60-323,878,504.40

Finding the Fourth Proportional to 431,373,928.40, 647,060,892.60 and 323,878,504.40

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Solution

The fourth proportional to 431,373,928.40, 647,060,892.60 and 323,878,504.40 is: 485,817,756.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,373,928.40 : 647,060,892.60 = 323,878,504.40 : x
  2. Step 2: Convert to fraction form
    431,373,928.40/647,060,892.60 = 323,878,504.40/x
  3. Step 3: Cross multiply
    431,373,928.40x = 647,060,892.60 × 323,878,504.40
  4. Step 4: Simplify right side
    431,373,928.40x = 209,569,114,151,017,024
  5. Step 5: Solve for x
    x = 209,569,114,151,017,024/431,373,928.40
  6. Step 6: Final answer
    x = 485,817,756.60

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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.