Home / 388,078,364.80-581,267,241.60-344,996,214.40

Finding the Fourth Proportional to 388,078,364.80, 581,267,241.60 and 344,996,214.40

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Solution

The fourth proportional to 388,078,364.80, 581,267,241.60 and 344,996,214.40 is: 516,738,411.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,078,364.80 : 581,267,241.60 = 344,996,214.40 : x
  2. Step 2: Convert to fraction form
    388,078,364.80/581,267,241.60 = 344,996,214.40/x
  3. Step 3: Cross multiply
    388,078,364.80x = 581,267,241.60 × 344,996,214.40
  4. Step 4: Simplify right side
    388,078,364.80x = 200,534,997,906,730,208
  5. Step 5: Solve for x
    x = 200,534,997,906,730,208/388,078,364.80
  6. Step 6: Final answer
    x = 516,738,411.87

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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.