Home / 65,664,090.80-98,496,136.20-20,219,980.40

Finding the Fourth Proportional to 65,664,090.80, 98,496,136.20 and 20,219,980.40

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Solution

The fourth proportional to 65,664,090.80, 98,496,136.20 and 20,219,980.40 is: 30,329,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,664,090.80 : 98,496,136.20 = 20,219,980.40 : x
  2. Step 2: Convert to fraction form
    65,664,090.80/98,496,136.20 = 20,219,980.40/x
  3. Step 3: Cross multiply
    65,664,090.80x = 98,496,136.20 × 20,219,980.40
  4. Step 4: Simplify right side
    65,664,090.80x = 1,991,589,943,439,730.50
  5. Step 5: Solve for x
    x = 1,991,589,943,439,730.50/65,664,090.80
  6. Step 6: Final answer
    x = 30,329,970.60

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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.