Home / 578,681,987.20-868,118,625.60-268,099,993.60

Finding the Fourth Proportional to 578,681,987.20, 868,118,625.60 and 268,099,993.60

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Solution

The fourth proportional to 578,681,987.20, 868,118,625.60 and 268,099,993.60 is: 402,194,302.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,681,987.20 : 868,118,625.60 = 268,099,993.60 : x
  2. Step 2: Convert to fraction form
    578,681,987.20/868,118,625.60 = 268,099,993.60/x
  3. Step 3: Cross multiply
    578,681,987.20x = 868,118,625.60 × 268,099,993.60
  4. Step 4: Simplify right side
    578,681,987.20x = 232,742,597,967,400,800
  5. Step 5: Solve for x
    x = 232,742,597,967,400,800/578,681,987.20
  6. Step 6: Final answer
    x = 402,194,302.08

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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.