Home / 21,554,611.20-32,331,916.80-19,791,014.40

Finding the Fourth Proportional to 21,554,611.20, 32,331,916.80 and 19,791,014.40

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Solution

The fourth proportional to 21,554,611.20, 32,331,916.80 and 19,791,014.40 is: 29,686,521.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554,611.20 : 32,331,916.80 = 19,791,014.40 : x
  2. Step 2: Convert to fraction form
    21,554,611.20/32,331,916.80 = 19,791,014.40/x
  3. Step 3: Cross multiply
    21,554,611.20x = 32,331,916.80 × 19,791,014.40
  4. Step 4: Simplify right side
    21,554,611.20x = 639,881,430,968,401.88
  5. Step 5: Solve for x
    x = 639,881,430,968,401.88/21,554,611.20
  6. Step 6: Final answer
    x = 29,686,521.60

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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.