Home / 1,413,107,989.30-2,119,978,122.29-430,611,422.86

Finding the Fourth Proportional to 1,413,107,989.30, 2,119,978,122.29 and 430,611,422.86

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Solution

The fourth proportional to 1,413,107,989.30, 2,119,978,122.29 and 430,611,422.86 is: 646,013,470.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413,107,989.30 : 2,119,978,122.29 = 430,611,422.86 : x
  2. Step 2: Convert to fraction form
    1,413,107,989.30/2,119,978,122.29 = 430,611,422.86/x
  3. Step 3: Cross multiply
    1,413,107,989.30x = 2,119,978,122.29 × 430,611,422.86
  4. Step 4: Simplify right side
    1,413,107,989.30x = 912,886,795,675,094,400
  5. Step 5: Solve for x
    x = 912,886,795,675,094,400/1,413,107,989.30
  6. Step 6: Final answer
    x = 646,013,470.02

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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.