Home / 207,185,599.20-310,778,398.80-198,339,621.60

Finding the Fourth Proportional to 207,185,599.20, 310,778,398.80 and 198,339,621.60

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Solution

The fourth proportional to 207,185,599.20, 310,778,398.80 and 198,339,621.60 is: 297,509,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,185,599.20 : 310,778,398.80 = 198,339,621.60 : x
  2. Step 2: Convert to fraction form
    207,185,599.20/310,778,398.80 = 198,339,621.60/x
  3. Step 3: Cross multiply
    207,185,599.20x = 310,778,398.80 × 198,339,621.60
  4. Step 4: Simplify right side
    207,185,599.20x = 61,639,670,019,445,896
  5. Step 5: Solve for x
    x = 61,639,670,019,445,896/207,185,599.20
  6. Step 6: Final answer
    x = 297,509,432.40

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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.