Finding the Fourth Proportional to 38,338,815,595.74, 52,909,609,278.87 and 21,422,873,780.70
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Solution
The fourth proportional to 38,338,815,595.74, 52,909,609,278.87 and 21,422,873,780.70 is: 29,564,707,822.99
Step by Step Solution
- Step 1: Write the proportion equation
38,338,815,595.74 : 52,909,609,278.87 = 21,422,873,780.70 : x - Step 2: Convert to fraction form
38,338,815,595.74/52,909,609,278.87 = 21,422,873,780.70/x - Step 3: Cross multiply
38,338,815,595.74x = 52,909,609,278.87 × 21,422,873,780.70 - Step 4: Simplify right side
38,338,815,595.74x = 1,133,475,881,367,385,669,632 - Step 5: Solve for x
x = 1,133,475,881,367,385,669,632/38,338,815,595.74 - Step 6: Final answer
x = 29,564,707,822.99
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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.