Home / 289,288,612.98-398,987,294.13-190,271,011.86

Finding the Fourth Proportional to 289,288,612.98, 398,987,294.13 and 190,271,011.86

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Solution

The fourth proportional to 289,288,612.98, 398,987,294.13 and 190,271,011.86 is: 262,422,068.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,288,612.98 : 398,987,294.13 = 190,271,011.86 : x
  2. Step 2: Convert to fraction form
    289,288,612.98/398,987,294.13 = 190,271,011.86/x
  3. Step 3: Cross multiply
    289,288,612.98x = 398,987,294.13 × 190,271,011.86
  4. Step 4: Simplify right side
    289,288,612.98x = 75,915,716,173,398,544
  5. Step 5: Solve for x
    x = 75,915,716,173,398,544/289,288,612.98
  6. Step 6: Final answer
    x = 262,422,068.37

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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.