Home / 398,628,740.70-597,943,111.05-156,291,644.70

Finding the Fourth Proportional to 398,628,740.70, 597,943,111.05 and 156,291,644.70

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Solution

The fourth proportional to 398,628,740.70, 597,943,111.05 and 156,291,644.70 is: 234,437,467.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,628,740.70 : 597,943,111.05 = 156,291,644.70 : x
  2. Step 2: Convert to fraction form
    398,628,740.70/597,943,111.05 = 156,291,644.70/x
  3. Step 3: Cross multiply
    398,628,740.70x = 597,943,111.05 × 156,291,644.70
  4. Step 4: Simplify right side
    398,628,740.70x = 93,453,512,263,039,232
  5. Step 5: Solve for x
    x = 93,453,512,263,039,232/398,628,740.70
  6. Step 6: Final answer
    x = 234,437,467.05

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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.