Home / 293,415,418.80-440,123,128.20-190,103,288.40

Finding the Fourth Proportional to 293,415,418.80, 440,123,128.20 and 190,103,288.40

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Solution

The fourth proportional to 293,415,418.80, 440,123,128.20 and 190,103,288.40 is: 285,154,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,415,418.80 : 440,123,128.20 = 190,103,288.40 : x
  2. Step 2: Convert to fraction form
    293,415,418.80/440,123,128.20 = 190,103,288.40/x
  3. Step 3: Cross multiply
    293,415,418.80x = 440,123,128.20 × 190,103,288.40
  4. Step 4: Simplify right side
    293,415,418.80x = 83,668,853,971,714,768
  5. Step 5: Solve for x
    x = 83,668,853,971,714,768/293,415,418.80
  6. Step 6: Final answer
    x = 285,154,932.60

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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.