Home / 12,528,037.90-18,792,056.85-7,153,266.70

Finding the Fourth Proportional to 12,528,037.90, 18,792,056.85 and 7,153,266.70

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Solution

The fourth proportional to 12,528,037.90, 18,792,056.85 and 7,153,266.70 is: 10,729,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,037.90 : 18,792,056.85 = 7,153,266.70 : x
  2. Step 2: Convert to fraction form
    12,528,037.90/18,792,056.85 = 7,153,266.70/x
  3. Step 3: Cross multiply
    12,528,037.90x = 18,792,056.85 × 7,153,266.70
  4. Step 4: Simplify right side
    12,528,037.90x = 134,424,594,489,611.91
  5. Step 5: Solve for x
    x = 134,424,594,489,611.91/12,528,037.90
  6. Step 6: Final answer
    x = 10,729,900.05

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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.