Home / 7,782,807.90-11,658,465.45-5,389,355.10

Finding the Fourth Proportional to 7,782,807.90, 11,658,465.45 and 5,389,355.10

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Solution

The fourth proportional to 7,782,807.90, 11,658,465.45 and 5,389,355.10 is: 8,073,128.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,782,807.90 : 11,658,465.45 = 5,389,355.10 : x
  2. Step 2: Convert to fraction form
    7,782,807.90/11,658,465.45 = 5,389,355.10/x
  3. Step 3: Cross multiply
    7,782,807.90x = 11,658,465.45 × 5,389,355.10
  4. Step 4: Simplify right side
    7,782,807.90x = 62,831,610,231,131.29
  5. Step 5: Solve for x
    x = 62,831,610,231,131.29/7,782,807.90
  6. Step 6: Final answer
    x = 8,073,128.75

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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.