Home / 86,934,000.45-130,401,000.68-80,364,835.65

Finding the Fourth Proportional to 86,934,000.45, 130,401,000.68 and 80,364,835.65

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Solution

The fourth proportional to 86,934,000.45, 130,401,000.68 and 80,364,835.65 is: 120,547,253.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,934,000.45 : 130,401,000.68 = 80,364,835.65 : x
  2. Step 2: Convert to fraction form
    86,934,000.45/130,401,000.68 = 80,364,835.65/x
  3. Step 3: Cross multiply
    86,934,000.45x = 130,401,000.68 × 80,364,835.65
  4. Step 4: Simplify right side
    86,934,000.45x = 10,479,654,987,841,914
  5. Step 5: Solve for x
    x = 10,479,654,987,841,914/86,934,000.45
  6. Step 6: Final answer
    x = 120,547,253.48

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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.