Home / 86,934,657.20-130,401,985.80-77,864,730.80

Finding the Fourth Proportional to 86,934,657.20, 130,401,985.80 and 77,864,730.80

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Solution

The fourth proportional to 86,934,657.20, 130,401,985.80 and 77,864,730.80 is: 116,797,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,934,657.20 : 130,401,985.80 = 77,864,730.80 : x
  2. Step 2: Convert to fraction form
    86,934,657.20/130,401,985.80 = 77,864,730.80/x
  3. Step 3: Cross multiply
    86,934,657.20x = 130,401,985.80 × 77,864,730.80
  4. Step 4: Simplify right side
    86,934,657.20x = 10,153,715,520,102,422
  5. Step 5: Solve for x
    x = 10,153,715,520,102,422/86,934,657.20
  6. Step 6: Final answer
    x = 116,797,096.20

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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.