Home / 199,303,393.60-298,955,090.40-122,376,980.80

Finding the Fourth Proportional to 199,303,393.60, 298,955,090.40 and 122,376,980.80

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Solution

The fourth proportional to 199,303,393.60, 298,955,090.40 and 122,376,980.80 is: 183,565,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,303,393.60 : 298,955,090.40 = 122,376,980.80 : x
  2. Step 2: Convert to fraction form
    199,303,393.60/298,955,090.40 = 122,376,980.80/x
  3. Step 3: Cross multiply
    199,303,393.60x = 298,955,090.40 × 122,376,980.80
  4. Step 4: Simplify right side
    199,303,393.60x = 36,585,221,357,943,064
  5. Step 5: Solve for x
    x = 36,585,221,357,943,064/199,303,393.60
  6. Step 6: Final answer
    x = 183,565,471.20

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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.