Home / 86,934,005.20-130,401,007.80-56,323,003.60

Finding the Fourth Proportional to 86,934,005.20, 130,401,007.80 and 56,323,003.60

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Solution

The fourth proportional to 86,934,005.20, 130,401,007.80 and 56,323,003.60 is: 84,484,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,934,005.20 : 130,401,007.80 = 56,323,003.60 : x
  2. Step 2: Convert to fraction form
    86,934,005.20/130,401,007.80 = 56,323,003.60/x
  3. Step 3: Cross multiply
    86,934,005.20x = 130,401,007.80 × 56,323,003.60
  4. Step 4: Simplify right side
    86,934,005.20x = 7,344,576,431,763,028
  5. Step 5: Solve for x
    x = 7,344,576,431,763,028/86,934,005.20
  6. Step 6: Final answer
    x = 84,484,505.40

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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.