Home / 30,233,088,005.70-45,349,632,008.55-18,478,463,391.30

Finding the Fourth Proportional to 30,233,088,005.70, 45,349,632,008.55 and 18,478,463,391.30

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Solution

The fourth proportional to 30,233,088,005.70, 45,349,632,008.55 and 18,478,463,391.30 is: 27,717,695,086.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,233,088,005.70 : 45,349,632,008.55 = 18,478,463,391.30 : x
  2. Step 2: Convert to fraction form
    30,233,088,005.70/45,349,632,008.55 = 18,478,463,391.30/x
  3. Step 3: Cross multiply
    30,233,088,005.70x = 45,349,632,008.55 × 18,478,463,391.30
  4. Step 4: Simplify right side
    30,233,088,005.70x = 837,991,514,878,917,869,568
  5. Step 5: Solve for x
    x = 837,991,514,878,917,869,568/30,233,088,005.70
  6. Step 6: Final answer
    x = 27,717,695,086.95

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Double scale
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Similar ratio
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1.5x scale

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.