Home / 310,032,336.80-465,048,505.20-206,720,206.40

Finding the Fourth Proportional to 310,032,336.80, 465,048,505.20 and 206,720,206.40

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Solution

The fourth proportional to 310,032,336.80, 465,048,505.20 and 206,720,206.40 is: 310,080,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,032,336.80 : 465,048,505.20 = 206,720,206.40 : x
  2. Step 2: Convert to fraction form
    310,032,336.80/465,048,505.20 = 206,720,206.40/x
  3. Step 3: Cross multiply
    310,032,336.80x = 465,048,505.20 × 206,720,206.40
  4. Step 4: Simplify right side
    310,032,336.80x = 96,134,922,980,955,472
  5. Step 5: Solve for x
    x = 96,134,922,980,955,472/310,032,336.80
  6. Step 6: Final answer
    x = 310,080,309.60

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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.