Home / 30,341,478-45,512,260.74-12,390,582

Finding the Fourth Proportional to 30,341,478, 45,512,260.74 and 12,390,582

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Solution

The fourth proportional to 30,341,478, 45,512,260.74 and 12,390,582 is: 18,585,890.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,341,478 : 45,512,260.74 = 12,390,582 : x
  2. Step 2: Convert to fraction form
    30,341,478/45,512,260.74 = 12,390,582/x
  3. Step 3: Cross multiply
    30,341,478x = 45,512,260.74 × 12,390,582
  4. Step 4: Simplify right side
    30,341,478x = 563,923,398,704,350.75
  5. Step 5: Solve for x
    x = 563,923,398,704,350.75/30,341,478
  6. Step 6: Final answer
    x = 18,585,890.86

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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.