Home / 31,290,000.40-46,935,000.60-8,570,861.20

Finding the Fourth Proportional to 31,290,000.40, 46,935,000.60 and 8,570,861.20

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Solution

The fourth proportional to 31,290,000.40, 46,935,000.60 and 8,570,861.20 is: 12,856,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,290,000.40 : 46,935,000.60 = 8,570,861.20 : x
  2. Step 2: Convert to fraction form
    31,290,000.40/46,935,000.60 = 8,570,861.20/x
  3. Step 3: Cross multiply
    31,290,000.40x = 46,935,000.60 × 8,570,861.20
  4. Step 4: Simplify right side
    31,290,000.40x = 402,273,375,564,516.69
  5. Step 5: Solve for x
    x = 402,273,375,564,516.69/31,290,000.40
  6. Step 6: Final answer
    x = 12,856,291.80

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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.