Home / 653,336,005.20-980,004,007.80-505,382,830.80

Finding the Fourth Proportional to 653,336,005.20, 980,004,007.80 and 505,382,830.80

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Solution

The fourth proportional to 653,336,005.20, 980,004,007.80 and 505,382,830.80 is: 758,074,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,336,005.20 : 980,004,007.80 = 505,382,830.80 : x
  2. Step 2: Convert to fraction form
    653,336,005.20/980,004,007.80 = 505,382,830.80/x
  3. Step 3: Cross multiply
    653,336,005.20x = 980,004,007.80 × 505,382,830.80
  4. Step 4: Simplify right side
    653,336,005.20x = 495,277,199,657,309,248
  5. Step 5: Solve for x
    x = 495,277,199,657,309,248/653,336,005.20
  6. Step 6: Final answer
    x = 758,074,246.20

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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.