Home / 1,209,382,568.64-1,669,000,796.64-680,780,664

Finding the Fourth Proportional to 1,209,382,568.64, 1,669,000,796.64 and 680,780,664

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Solution

The fourth proportional to 1,209,382,568.64, 1,669,000,796.64 and 680,780,664 is: 939,507,067.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,382,568.64 : 1,669,000,796.64 = 680,780,664 : x
  2. Step 2: Convert to fraction form
    1,209,382,568.64/1,669,000,796.64 = 680,780,664/x
  3. Step 3: Cross multiply
    1,209,382,568.64x = 1,669,000,796.64 × 680,780,664
  4. Step 4: Simplify right side
    1,209,382,568.64x = 1,136,223,470,553,108,224
  5. Step 5: Solve for x
    x = 1,136,223,470,553,108,224/1,209,382,568.64
  6. Step 6: Final answer
    x = 939,507,067.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.