Home / 86,934,404.80-130,401,607.20-83,575,172.80

Finding the Fourth Proportional to 86,934,404.80, 130,401,607.20 and 83,575,172.80

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Solution

The fourth proportional to 86,934,404.80, 130,401,607.20 and 83,575,172.80 is: 125,362,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,934,404.80 : 130,401,607.20 = 83,575,172.80 : x
  2. Step 2: Convert to fraction form
    86,934,404.80/130,401,607.20 = 83,575,172.80/x
  3. Step 3: Cross multiply
    86,934,404.80x = 130,401,607.20 × 83,575,172.80
  4. Step 4: Simplify right side
    86,934,404.80x = 10,898,336,855,137,724
  5. Step 5: Solve for x
    x = 10,898,336,855,137,724/86,934,404.80
  6. Step 6: Final answer
    x = 125,362,759.20

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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.