Home / 857,849,612.68-1,286,186,975.43-436,856,063.59

Finding the Fourth Proportional to 857,849,612.68, 1,286,186,975.43 and 436,856,063.59

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Solution

The fourth proportional to 857,849,612.68, 1,286,186,975.43 and 436,856,063.59 is: 654,984,942.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,849,612.68 : 1,286,186,975.43 = 436,856,063.59 : x
  2. Step 2: Convert to fraction form
    857,849,612.68/1,286,186,975.43 = 436,856,063.59/x
  3. Step 3: Cross multiply
    857,849,612.68x = 1,286,186,975.43 × 436,856,063.59
  4. Step 4: Simplify right side
    857,849,612.68x = 561,878,579,127,077,824
  5. Step 5: Solve for x
    x = 561,878,579,127,077,824/857,849,612.68
  6. Step 6: Final answer
    x = 654,984,942.37

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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.