Home / 15,607,991,054.78-21,539,043,596.44-8,471,406,338.19

Finding the Fourth Proportional to 15,607,991,054.78, 21,539,043,596.44 and 8,471,406,338.19

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Solution

The fourth proportional to 15,607,991,054.78, 21,539,043,596.44 and 8,471,406,338.19 is: 11,690,549,398.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,607,991,054.78 : 21,539,043,596.44 = 8,471,406,338.19 : x
  2. Step 2: Convert to fraction form
    15,607,991,054.78/21,539,043,596.44 = 8,471,406,338.19/x
  3. Step 3: Cross multiply
    15,607,991,054.78x = 21,539,043,596.44 × 8,471,406,338.19
  4. Step 4: Simplify right side
    15,607,991,054.78x = 182,465,990,441,441,034,240
  5. Step 5: Solve for x
    x = 182,465,990,441,441,034,240/15,607,991,054.78
  6. Step 6: Final answer
    x = 11,690,549,398.77

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Double scale
Find fourth proportional to 15,607,991,055.78, 21,539,043,597.82 and 8,471,406,339.19
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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.