Home / 15,355,669,863.06-21,190,902,771.92-8,581,601,502.86

Finding the Fourth Proportional to 15,355,669,863.06, 21,190,902,771.92 and 8,581,601,502.86

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Solution

The fourth proportional to 15,355,669,863.06, 21,190,902,771.92 and 8,581,601,502.86 is: 11,842,653,866.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,355,669,863.06 : 21,190,902,771.92 = 8,581,601,502.86 : x
  2. Step 2: Convert to fraction form
    15,355,669,863.06/21,190,902,771.92 = 8,581,601,502.86/x
  3. Step 3: Cross multiply
    15,355,669,863.06x = 21,190,902,771.92 × 8,581,601,502.86
  4. Step 4: Simplify right side
    15,355,669,863.06x = 181,851,883,074,319,941,632
  5. Step 5: Solve for x
    x = 181,851,883,074,319,941,632/15,355,669,863.06
  6. Step 6: Final answer
    x = 11,842,653,866.36

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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.