Home / 1,326,050,846.87-1,988,736,996.89-393,155,551.10

Finding the Fourth Proportional to 1,326,050,846.87, 1,988,736,996.89 and 393,155,551.10

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Solution

The fourth proportional to 1,326,050,846.87, 1,988,736,996.89 and 393,155,551.10 is: 589,632,736.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,050,846.87 : 1,988,736,996.89 = 393,155,551.10 : x
  2. Step 2: Convert to fraction form
    1,326,050,846.87/1,988,736,996.89 = 393,155,551.10/x
  3. Step 3: Cross multiply
    1,326,050,846.87x = 1,988,736,996.89 × 393,155,551.10
  4. Step 4: Simplify right side
    1,326,050,846.87x = 781,882,989,995,303,296
  5. Step 5: Solve for x
    x = 781,882,989,995,303,296/1,326,050,846.87
  6. Step 6: Final answer
    x = 589,632,736.81

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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.