Home / 436,890,056.40-655,335,084.60-393,052,078.80

Finding the Fourth Proportional to 436,890,056.40, 655,335,084.60 and 393,052,078.80

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Solution

The fourth proportional to 436,890,056.40, 655,335,084.60 and 393,052,078.80 is: 589,578,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,890,056.40 : 655,335,084.60 = 393,052,078.80 : x
  2. Step 2: Convert to fraction form
    436,890,056.40/655,335,084.60 = 393,052,078.80/x
  3. Step 3: Cross multiply
    436,890,056.40x = 655,335,084.60 × 393,052,078.80
  4. Step 4: Simplify right side
    436,890,056.40x = 257,580,817,312,603,872
  5. Step 5: Solve for x
    x = 257,580,817,312,603,872/436,890,056.40
  6. Step 6: Final answer
    x = 589,578,118.20

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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.