Home / 857,849,613.68-1,286,186,976.93-436,856,064.59

Finding the Fourth Proportional to 857,849,613.68, 1,286,186,976.93 and 436,856,064.59

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Solution

The fourth proportional to 857,849,613.68, 1,286,186,976.93 and 436,856,064.59 is: 654,984,943.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,849,613.68 : 1,286,186,976.93 = 436,856,064.59 : x
  2. Step 2: Convert to fraction form
    857,849,613.68/1,286,186,976.93 = 436,856,064.59/x
  3. Step 3: Cross multiply
    857,849,613.68x = 1,286,186,976.93 × 436,856,064.59
  4. Step 4: Simplify right side
    857,849,613.68x = 561,878,581,068,548,928
  5. Step 5: Solve for x
    x = 561,878,581,068,548,928/857,849,613.68
  6. Step 6: Final answer
    x = 654,984,943.87

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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.