Home / 15,920,345.40-21,967,857.06-8,950,070.22

Finding the Fourth Proportional to 15,920,345.40, 21,967,857.06 and 8,950,070.22

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Solution

The fourth proportional to 15,920,345.40, 21,967,857.06 and 8,950,070.22 is: 12,349,849.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,920,345.40 : 21,967,857.06 = 8,950,070.22 : x
  2. Step 2: Convert to fraction form
    15,920,345.40/21,967,857.06 = 8,950,070.22/x
  3. Step 3: Cross multiply
    15,920,345.40x = 21,967,857.06 × 8,950,070.22
  4. Step 4: Simplify right side
    15,920,345.40x = 196,613,863,269,922.75
  5. Step 5: Solve for x
    x = 196,613,863,269,922.75/15,920,345.40
  6. Step 6: Final answer
    x = 12,349,849.10

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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.