Home / 199,287,079.20-298,930,618.80-122,360,666.40

Finding the Fourth Proportional to 199,287,079.20, 298,930,618.80 and 122,360,666.40

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Solution

The fourth proportional to 199,287,079.20, 298,930,618.80 and 122,360,666.40 is: 183,540,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,287,079.20 : 298,930,618.80 = 122,360,666.40 : x
  2. Step 2: Convert to fraction form
    199,287,079.20/298,930,618.80 = 122,360,666.40/x
  3. Step 3: Cross multiply
    199,287,079.20x = 298,930,618.80 × 122,360,666.40
  4. Step 4: Simplify right side
    199,287,079.20x = 36,577,349,723,732,368
  5. Step 5: Solve for x
    x = 36,577,349,723,732,368/199,287,079.20
  6. Step 6: Final answer
    x = 183,540,999.60

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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.