Home / 1,209,942,521.64-1,669,772,013.72-674,093,710.68

Finding the Fourth Proportional to 1,209,942,521.64, 1,669,772,013.72 and 674,093,710.68

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Solution

The fourth proportional to 1,209,942,521.64, 1,669,772,013.72 and 674,093,710.68 is: 930,277,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,942,521.64 : 1,669,772,013.72 = 674,093,710.68 : x
  2. Step 2: Convert to fraction form
    1,209,942,521.64/1,669,772,013.72 = 674,093,710.68/x
  3. Step 3: Cross multiply
    1,209,942,521.64x = 1,669,772,013.72 × 674,093,710.68
  4. Step 4: Simplify right side
    1,209,942,521.64x = 1,125,582,812,718,130,560
  5. Step 5: Solve for x
    x = 1,125,582,812,718,130,560/1,209,942,521.64
  6. Step 6: Final answer
    x = 930,277,920.30

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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.