Home / 5,221,678.42-7,831,188.69-1,626,775.30

Finding the Fourth Proportional to 5,221,678.42, 7,831,188.69 and 1,626,775.30

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Solution

The fourth proportional to 5,221,678.42, 7,831,188.69 and 1,626,775.30 is: 2,439,748.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221,678.42 : 7,831,188.69 = 1,626,775.30 : x
  2. Step 2: Convert to fraction form
    5,221,678.42/7,831,188.69 = 1,626,775.30/x
  3. Step 3: Cross multiply
    5,221,678.42x = 7,831,188.69 × 1,626,775.30
  4. Step 4: Simplify right side
    5,221,678.42x = 12,739,584,330,531.36
  5. Step 5: Solve for x
    x = 12,739,584,330,531.36/5,221,678.42
  6. Step 6: Final answer
    x = 2,439,748.93

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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.