Home / 268,631,338.40-402,947,007.60-210,180,701.60

Finding the Fourth Proportional to 268,631,338.40, 402,947,007.60 and 210,180,701.60

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Solution

The fourth proportional to 268,631,338.40, 402,947,007.60 and 210,180,701.60 is: 315,271,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,631,338.40 : 402,947,007.60 = 210,180,701.60 : x
  2. Step 2: Convert to fraction form
    268,631,338.40/402,947,007.60 = 210,180,701.60/x
  3. Step 3: Cross multiply
    268,631,338.40x = 402,947,007.60 × 210,180,701.60
  4. Step 4: Simplify right side
    268,631,338.40x = 84,691,684,764,988,528
  5. Step 5: Solve for x
    x = 84,691,684,764,988,528/268,631,338.40
  6. Step 6: Final answer
    x = 315,271,052.40

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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.