Home / 287,713,818.60-431,570,727.90-200,037,863.40

Finding the Fourth Proportional to 287,713,818.60, 431,570,727.90 and 200,037,863.40

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Solution

The fourth proportional to 287,713,818.60, 431,570,727.90 and 200,037,863.40 is: 300,056,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,713,818.60 : 431,570,727.90 = 200,037,863.40 : x
  2. Step 2: Convert to fraction form
    287,713,818.60/431,570,727.90 = 200,037,863.40/x
  3. Step 3: Cross multiply
    287,713,818.60x = 431,570,727.90 × 200,037,863.40
  4. Step 4: Simplify right side
    287,713,818.60x = 86,330,486,315,098,768
  5. Step 5: Solve for x
    x = 86,330,486,315,098,768/287,713,818.60
  6. Step 6: Final answer
    x = 300,056,795.10

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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.