Home / 19,929,695.40-29,894,543.10-12,763,333.80

Finding the Fourth Proportional to 19,929,695.40, 29,894,543.10 and 12,763,333.80

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Solution

The fourth proportional to 19,929,695.40, 29,894,543.10 and 12,763,333.80 is: 19,145,000.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929,695.40 : 29,894,543.10 = 12,763,333.80 : x
  2. Step 2: Convert to fraction form
    19,929,695.40/29,894,543.10 = 12,763,333.80/x
  3. Step 3: Cross multiply
    19,929,695.40x = 29,894,543.10 × 12,763,333.80
  4. Step 4: Simplify right side
    19,929,695.40x = 381,554,032,383,786.81
  5. Step 5: Solve for x
    x = 381,554,032,383,786.81/19,929,695.40
  6. Step 6: Final answer
    x = 19,145,000.70

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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.