Home / 420,332,969,306.70-630,580,573,122.95-137,275,715,963.35

Finding the Fourth Proportional to 420,332,969,306.70, 630,580,573,122.95 and 137,275,715,963.35

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Solution

The fourth proportional to 420,332,969,306.70, 630,580,573,122.95 and 137,275,715,963.35 is: 205,940,066,492.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,332,969,306.70 : 630,580,573,122.95 = 137,275,715,963.35 : x
  2. Step 2: Convert to fraction form
    420,332,969,306.70/630,580,573,122.95 = 137,275,715,963.35/x
  3. Step 3: Cross multiply
    420,332,969,306.70x = 630,580,573,122.95 × 137,275,715,963.35
  4. Step 4: Simplify right side
    420,332,969,306.70x = 86,563,399,648,032,533,250,048
  5. Step 5: Solve for x
    x = 86,563,399,648,032,533,250,048/420,332,969,306.70
  6. Step 6: Final answer
    x = 205,940,066,492.55

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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.