Home / 19,847,715.40-29,771,573.10-8,489,312.20

Finding the Fourth Proportional to 19,847,715.40, 29,771,573.10 and 8,489,312.20

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Solution

The fourth proportional to 19,847,715.40, 29,771,573.10 and 8,489,312.20 is: 12,733,968.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,847,715.40 : 29,771,573.10 = 8,489,312.20 : x
  2. Step 2: Convert to fraction form
    19,847,715.40/29,771,573.10 = 8,489,312.20/x
  3. Step 3: Cross multiply
    19,847,715.40x = 29,771,573.10 × 8,489,312.20
  4. Step 4: Simplify right side
    19,847,715.40x = 252,740,178,731,021.81
  5. Step 5: Solve for x
    x = 252,740,178,731,021.81/19,847,715.40
  6. Step 6: Final answer
    x = 12,733,968.30

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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.