Home / 190,512,005.20-285,768,007.80-189,168,312.40

Finding the Fourth Proportional to 190,512,005.20, 285,768,007.80 and 189,168,312.40

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Solution

The fourth proportional to 190,512,005.20, 285,768,007.80 and 189,168,312.40 is: 283,752,468.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,512,005.20 : 285,768,007.80 = 189,168,312.40 : x
  2. Step 2: Convert to fraction form
    190,512,005.20/285,768,007.80 = 189,168,312.40/x
  3. Step 3: Cross multiply
    190,512,005.20x = 285,768,007.80 × 189,168,312.40
  4. Step 4: Simplify right side
    190,512,005.20x = 54,058,251,773,436,040
  5. Step 5: Solve for x
    x = 54,058,251,773,436,040/190,512,005.20
  6. Step 6: Final answer
    x = 283,752,468.60

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1.5x scale

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.