Home / 21,410,707,959.76-29,545,044,847.88-12,379,045,509.52

Finding the Fourth Proportional to 21,410,707,959.76, 29,545,044,847.88 and 12,379,045,509.52

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Solution

The fourth proportional to 21,410,707,959.76, 29,545,044,847.88 and 12,379,045,509.52 is: 17,082,081,332.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,410,707,959.76 : 29,545,044,847.88 = 12,379,045,509.52 : x
  2. Step 2: Convert to fraction form
    21,410,707,959.76/29,545,044,847.88 = 12,379,045,509.52/x
  3. Step 3: Cross multiply
    21,410,707,959.76x = 29,545,044,847.88 × 12,379,045,509.52
  4. Step 4: Simplify right side
    21,410,707,959.76x = 365,739,454,752,715,964,416
  5. Step 5: Solve for x
    x = 365,739,454,752,715,964,416/21,410,707,959.76
  6. Step 6: Final answer
    x = 17,082,081,332.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.