Home / 12,528,021.60-18,792,032.40-8,486,445.60

Finding the Fourth Proportional to 12,528,021.60, 18,792,032.40 and 8,486,445.60

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Solution

The fourth proportional to 12,528,021.60, 18,792,032.40 and 8,486,445.60 is: 12,729,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,021.60 : 18,792,032.40 = 8,486,445.60 : x
  2. Step 2: Convert to fraction form
    12,528,021.60/18,792,032.40 = 8,486,445.60/x
  3. Step 3: Cross multiply
    12,528,021.60x = 18,792,032.40 × 8,486,445.60
  4. Step 4: Simplify right side
    12,528,021.60x = 159,477,560,676,037.41
  5. Step 5: Solve for x
    x = 159,477,560,676,037.41/12,528,021.60
  6. Step 6: Final answer
    x = 12,729,668.40

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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.