Home / 1,661,038,438.40-2,491,557,657.60-434,330,892.80

Finding the Fourth Proportional to 1,661,038,438.40, 2,491,557,657.60 and 434,330,892.80

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Solution

The fourth proportional to 1,661,038,438.40, 2,491,557,657.60 and 434,330,892.80 is: 651,496,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,038,438.40 : 2,491,557,657.60 = 434,330,892.80 : x
  2. Step 2: Convert to fraction form
    1,661,038,438.40/2,491,557,657.60 = 434,330,892.80/x
  3. Step 3: Cross multiply
    1,661,038,438.40x = 2,491,557,657.60 × 434,330,892.80
  4. Step 4: Simplify right side
    1,661,038,438.40x = 1,082,160,461,888,084,736
  5. Step 5: Solve for x
    x = 1,082,160,461,888,084,736/1,661,038,438.40
  6. Step 6: Final answer
    x = 651,496,339.20

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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.