Home / 716,519,976.16-989,102,669.52-481,706,819.68

Finding the Fourth Proportional to 716,519,976.16, 989,102,669.52 and 481,706,819.68

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Solution

The fourth proportional to 716,519,976.16, 989,102,669.52 and 481,706,819.68 is: 664,960,527.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,519,976.16 : 989,102,669.52 = 481,706,819.68 : x
  2. Step 2: Convert to fraction form
    716,519,976.16/989,102,669.52 = 481,706,819.68/x
  3. Step 3: Cross multiply
    716,519,976.16x = 989,102,669.52 × 481,706,819.68
  4. Step 4: Simplify right side
    716,519,976.16x = 476,457,501,271,477,248
  5. Step 5: Solve for x
    x = 476,457,501,271,477,248/716,519,976.16
  6. Step 6: Final answer
    x = 664,960,527.44

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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.