Home / 579,980,222.46-800,390,284.47-315,681,327.09

Finding the Fourth Proportional to 579,980,222.46, 800,390,284.47 and 315,681,327.09

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Solution

The fourth proportional to 579,980,222.46, 800,390,284.47 and 315,681,327.09 is: 435,649,798.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,980,222.46 : 800,390,284.47 = 315,681,327.09 : x
  2. Step 2: Convert to fraction form
    579,980,222.46/800,390,284.47 = 315,681,327.09/x
  3. Step 3: Cross multiply
    579,980,222.46x = 800,390,284.47 × 315,681,327.09
  4. Step 4: Simplify right side
    579,980,222.46x = 252,668,267,191,432,192
  5. Step 5: Solve for x
    x = 252,668,267,191,432,192/579,980,222.46
  6. Step 6: Final answer
    x = 435,649,798.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.