Home / 769,827,056.80-1,155,072,361.20-446,986,890.40

Finding the Fourth Proportional to 769,827,056.80, 1,155,072,361.20 and 446,986,890.40

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Solution

The fourth proportional to 769,827,056.80, 1,155,072,361.20 and 446,986,890.40 is: 670,672,975.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,827,056.80 : 1,155,072,361.20 = 446,986,890.40 : x
  2. Step 2: Convert to fraction form
    769,827,056.80/1,155,072,361.20 = 446,986,890.40/x
  3. Step 3: Cross multiply
    769,827,056.80x = 1,155,072,361.20 × 446,986,890.40
  4. Step 4: Simplify right side
    769,827,056.80x = 516,302,202,919,773,632
  5. Step 5: Solve for x
    x = 516,302,202,919,773,632/769,827,056.80
  6. Step 6: Final answer
    x = 670,672,975.65

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1.5x scale

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.