Home / 509,336,528.40-764,004,792.60-145,830,884.40

Finding the Fourth Proportional to 509,336,528.40, 764,004,792.60 and 145,830,884.40

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Solution

The fourth proportional to 509,336,528.40, 764,004,792.60 and 145,830,884.40 is: 218,746,326.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,336,528.40 : 764,004,792.60 = 145,830,884.40 : x
  2. Step 2: Convert to fraction form
    509,336,528.40/764,004,792.60 = 145,830,884.40/x
  3. Step 3: Cross multiply
    509,336,528.40x = 764,004,792.60 × 145,830,884.40
  4. Step 4: Simplify right side
    509,336,528.40x = 111,415,494,590,696,576
  5. Step 5: Solve for x
    x = 111,415,494,590,696,576/509,336,528.40
  6. Step 6: Final answer
    x = 218,746,326.60

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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.