Home / 313,260,272.80-469,890,409.20-190,816,266.40

Finding the Fourth Proportional to 313,260,272.80, 469,890,409.20 and 190,816,266.40

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Solution

The fourth proportional to 313,260,272.80, 469,890,409.20 and 190,816,266.40 is: 286,224,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,260,272.80 : 469,890,409.20 = 190,816,266.40 : x
  2. Step 2: Convert to fraction form
    313,260,272.80/469,890,409.20 = 190,816,266.40/x
  3. Step 3: Cross multiply
    313,260,272.80x = 469,890,409.20 × 190,816,266.40
  4. Step 4: Simplify right side
    313,260,272.80x = 89,662,733,500,712,208
  5. Step 5: Solve for x
    x = 89,662,733,500,712,208/313,260,272.80
  6. Step 6: Final answer
    x = 286,224,399.60

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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.