Home / 287,011,570.10-430,517,355.15-201,015,230.90

Finding the Fourth Proportional to 287,011,570.10, 430,517,355.15 and 201,015,230.90

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Solution

The fourth proportional to 287,011,570.10, 430,517,355.15 and 201,015,230.90 is: 301,522,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,011,570.10 : 430,517,355.15 = 201,015,230.90 : x
  2. Step 2: Convert to fraction form
    287,011,570.10/430,517,355.15 = 201,015,230.90/x
  3. Step 3: Cross multiply
    287,011,570.10x = 430,517,355.15 × 201,015,230.90
  4. Step 4: Simplify right side
    287,011,570.10x = 86,540,545,551,934,544
  5. Step 5: Solve for x
    x = 86,540,545,551,934,544/287,011,570.10
  6. Step 6: Final answer
    x = 301,522,846.35

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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.