Home / 2,116,521,728.51-3,174,577,447.32-642,674,492.75

Finding the Fourth Proportional to 2,116,521,728.51, 3,174,577,447.32 and 642,674,492.75

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Solution

The fourth proportional to 2,116,521,728.51, 3,174,577,447.32 and 642,674,492.75 is: 963,949,447.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116,521,728.51 : 3,174,577,447.32 = 642,674,492.75 : x
  2. Step 2: Convert to fraction form
    2,116,521,728.51/3,174,577,447.32 = 642,674,492.75/x
  3. Step 3: Cross multiply
    2,116,521,728.51x = 3,174,577,447.32 × 642,674,492.75
  4. Step 4: Simplify right side
    2,116,521,728.51x = 2,040,219,950,636,098,048
  5. Step 5: Solve for x
    x = 2,040,219,950,636,098,048/2,116,521,728.51
  6. Step 6: Final answer
    x = 963,949,447.42

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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.