Home / 86,016,090.80-129,024,136.20-64,782,426.80

Finding the Fourth Proportional to 86,016,090.80, 129,024,136.20 and 64,782,426.80

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Solution

The fourth proportional to 86,016,090.80, 129,024,136.20 and 64,782,426.80 is: 97,173,640.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,016,090.80 : 129,024,136.20 = 64,782,426.80 : x
  2. Step 2: Convert to fraction form
    86,016,090.80/129,024,136.20 = 64,782,426.80/x
  3. Step 3: Cross multiply
    86,016,090.80x = 129,024,136.20 × 64,782,426.80
  4. Step 4: Simplify right side
    86,016,090.80x = 8,358,496,658,809,730
  5. Step 5: Solve for x
    x = 8,358,496,658,809,730/86,016,090.80
  6. Step 6: Final answer
    x = 97,173,640.20

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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.