Home / 484,982,428.80-727,719,364.80-212,355,868.80

Finding the Fourth Proportional to 484,982,428.80, 727,719,364.80 and 212,355,868.80

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Solution

The fourth proportional to 484,982,428.80, 727,719,364.80 and 212,355,868.80 is: 318,641,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,982,428.80 : 727,719,364.80 = 212,355,868.80 : x
  2. Step 2: Convert to fraction form
    484,982,428.80/727,719,364.80 = 212,355,868.80/x
  3. Step 3: Cross multiply
    484,982,428.80x = 727,719,364.80 × 212,355,868.80
  4. Step 4: Simplify right side
    484,982,428.80x = 154,535,477,954,688,128
  5. Step 5: Solve for x
    x = 154,535,477,954,688,128/484,982,428.80
  6. Step 6: Final answer
    x = 318,641,395.60

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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.