Home / 398,628,985.20-597,943,477.80-156,291,889.20

Finding the Fourth Proportional to 398,628,985.20, 597,943,477.80 and 156,291,889.20

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Solution

The fourth proportional to 398,628,985.20, 597,943,477.80 and 156,291,889.20 is: 234,437,833.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,628,985.20 : 597,943,477.80 = 156,291,889.20 : x
  2. Step 2: Convert to fraction form
    398,628,985.20/597,943,477.80 = 156,291,889.20/x
  3. Step 3: Cross multiply
    398,628,985.20x = 597,943,477.80 × 156,291,889.20
  4. Step 4: Simplify right side
    398,628,985.20x = 93,453,715,780,180,240
  5. Step 5: Solve for x
    x = 93,453,715,780,180,240/398,628,985.20
  6. Step 6: Final answer
    x = 234,437,833.80

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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.