Home / 908,541,762.24-1,362,812,487.84-287,193,172.32

Finding the Fourth Proportional to 908,541,762.24, 1,362,812,487.84 and 287,193,172.32

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Solution

The fourth proportional to 908,541,762.24, 1,362,812,487.84 and 287,193,172.32 is: 430,789,709.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,541,762.24 : 1,362,812,487.84 = 287,193,172.32 : x
  2. Step 2: Convert to fraction form
    908,541,762.24/1,362,812,487.84 = 287,193,172.32/x
  3. Step 3: Cross multiply
    908,541,762.24x = 1,362,812,487.84 × 287,193,172.32
  4. Step 4: Simplify right side
    908,541,762.24x = 391,390,441,660,080,960
  5. Step 5: Solve for x
    x = 391,390,441,660,080,960/908,541,762.24
  6. Step 6: Final answer
    x = 430,789,709.32

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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.