Home / 472,862,059.60-709,293,089.40-387,831,499.60

Finding the Fourth Proportional to 472,862,059.60, 709,293,089.40 and 387,831,499.60

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Solution

The fourth proportional to 472,862,059.60, 709,293,089.40 and 387,831,499.60 is: 581,747,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,862,059.60 : 709,293,089.40 = 387,831,499.60 : x
  2. Step 2: Convert to fraction form
    472,862,059.60/709,293,089.40 = 387,831,499.60/x
  3. Step 3: Cross multiply
    472,862,059.60x = 709,293,089.40 × 387,831,499.60
  4. Step 4: Simplify right side
    472,862,059.60x = 275,086,202,517,918,880
  5. Step 5: Solve for x
    x = 275,086,202,517,918,880/472,862,059.60
  6. Step 6: Final answer
    x = 581,747,249.40

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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.