Home / 25,920,128.40-38,880,192.60-8,875,136.40

Finding the Fourth Proportional to 25,920,128.40, 38,880,192.60 and 8,875,136.40

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Solution

The fourth proportional to 25,920,128.40, 38,880,192.60 and 8,875,136.40 is: 13,312,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920,128.40 : 38,880,192.60 = 8,875,136.40 : x
  2. Step 2: Convert to fraction form
    25,920,128.40/38,880,192.60 = 8,875,136.40/x
  3. Step 3: Cross multiply
    25,920,128.40x = 38,880,192.60 × 8,875,136.40
  4. Step 4: Simplify right side
    25,920,128.40x = 345,067,012,583,270.69
  5. Step 5: Solve for x
    x = 345,067,012,583,270.69/25,920,128.40
  6. Step 6: Final answer
    x = 13,312,704.60

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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.