Home / 579,980,211.96-800,390,269.98-315,681,316.64

Finding the Fourth Proportional to 579,980,211.96, 800,390,269.98 and 315,681,316.64

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Solution

The fourth proportional to 579,980,211.96, 800,390,269.98 and 315,681,316.64 is: 435,649,784.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,980,211.96 : 800,390,269.98 = 315,681,316.64 : x
  2. Step 2: Convert to fraction form
    579,980,211.96/800,390,269.98 = 315,681,316.64/x
  3. Step 3: Cross multiply
    579,980,211.96x = 800,390,269.98 × 315,681,316.64
  4. Step 4: Simplify right side
    579,980,211.96x = 252,668,254,249,129,504
  5. Step 5: Solve for x
    x = 252,668,254,249,129,504/579,980,211.96
  6. Step 6: Final answer
    x = 435,649,784.32

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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.