Home / 21,136,880.10-29,168,400.60-12,435,613.05

Finding the Fourth Proportional to 21,136,880.10, 29,168,400.60 and 12,435,613.05

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Solution

The fourth proportional to 21,136,880.10, 29,168,400.60 and 12,435,613.05 is: 17,160,855.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136,880.10 : 29,168,400.60 = 12,435,613.05 : x
  2. Step 2: Convert to fraction form
    21,136,880.10/29,168,400.60 = 12,435,613.05/x
  3. Step 3: Cross multiply
    21,136,880.10x = 29,168,400.60 × 12,435,613.05
  4. Step 4: Simplify right side
    21,136,880.10x = 362,726,943,148,987.88
  5. Step 5: Solve for x
    x = 362,726,943,148,987.88/21,136,880.10
  6. Step 6: Final answer
    x = 17,160,855.41

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1.5x scale

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.