Home / 28,987,106.04-40,002,703.74-15,934,915.80

Finding the Fourth Proportional to 28,987,106.04, 40,002,703.74 and 15,934,915.80

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Solution

The fourth proportional to 28,987,106.04, 40,002,703.74 and 15,934,915.80 is: 21,990,457.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987,106.04 : 40,002,703.74 = 15,934,915.80 : x
  2. Step 2: Convert to fraction form
    28,987,106.04/40,002,703.74 = 15,934,915.80/x
  3. Step 3: Cross multiply
    28,987,106.04x = 40,002,703.74 × 15,934,915.80
  4. Step 4: Simplify right side
    28,987,106.04x = 637,439,715,869,245.12
  5. Step 5: Solve for x
    x = 637,439,715,869,245.12/28,987,106.04
  6. Step 6: Final answer
    x = 21,990,457.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.