Home / 12,948,000.80-19,422,001.20-7,909,152.80

Finding the Fourth Proportional to 12,948,000.80, 19,422,001.20 and 7,909,152.80

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Solution

The fourth proportional to 12,948,000.80, 19,422,001.20 and 7,909,152.80 is: 11,863,729.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,000.80 : 19,422,001.20 = 7,909,152.80 : x
  2. Step 2: Convert to fraction form
    12,948,000.80/19,422,001.20 = 7,909,152.80/x
  3. Step 3: Cross multiply
    12,948,000.80x = 19,422,001.20 × 7,909,152.80
  4. Step 4: Simplify right side
    12,948,000.80x = 153,611,575,172,583.34
  5. Step 5: Solve for x
    x = 153,611,575,172,583.34/12,948,000.80
  6. Step 6: Final answer
    x = 11,863,729.20

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1.5x scale

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.