Home / 15,133,644,883.68-20,885,064,412.78-8,703,469,883.83

Finding the Fourth Proportional to 15,133,644,883.68, 20,885,064,412.78 and 8,703,469,883.83

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Solution

The fourth proportional to 15,133,644,883.68, 20,885,064,412.78 and 8,703,469,883.83 is: 12,011,153,329.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,133,644,883.68 : 20,885,064,412.78 = 8,703,469,883.83 : x
  2. Step 2: Convert to fraction form
    15,133,644,883.68/20,885,064,412.78 = 8,703,469,883.83/x
  3. Step 3: Cross multiply
    15,133,644,883.68x = 20,885,064,412.78 × 8,703,469,883.83
  4. Step 4: Simplify right side
    15,133,644,883.68x = 181,772,529,138,424,741,888
  5. Step 5: Solve for x
    x = 181,772,529,138,424,741,888/15,133,644,883.68
  6. Step 6: Final answer
    x = 12,011,153,329.92

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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.