Home / 18,985,136.40-28,470,706.20-9,397,328.40

Finding the Fourth Proportional to 18,985,136.40, 28,470,706.20 and 9,397,328.40

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Solution

The fourth proportional to 18,985,136.40, 28,470,706.20 and 9,397,328.40 is: 14,092,528.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985,136.40 : 28,470,706.20 = 9,397,328.40 : x
  2. Step 2: Convert to fraction form
    18,985,136.40/28,470,706.20 = 9,397,328.40/x
  3. Step 3: Cross multiply
    18,985,136.40x = 28,470,706.20 × 9,397,328.40
  4. Step 4: Simplify right side
    18,985,136.40x = 267,548,575,941,316.09
  5. Step 5: Solve for x
    x = 267,548,575,941,316.09/18,985,136.40
  6. Step 6: Final answer
    x = 14,092,528.51

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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.