Finding the Fourth Proportional to 1,407,918,490.74, 2,111,958,441.80 and 372,752,472.96
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Solution
The fourth proportional to 1,407,918,490.74, 2,111,958,441.80 and 372,752,472.96 is: 559,150,076.62
Step by Step Solution
- Step 1: Write the proportion equation
1,407,918,490.74 : 2,111,958,441.80 = 372,752,472.96 : x - Step 2: Convert to fraction form
1,407,918,490.74/2,111,958,441.80 = 372,752,472.96/x - Step 3: Cross multiply
1,407,918,490.74x = 2,111,958,441.80 × 372,752,472.96 - Step 4: Simplify right side
1,407,918,490.74x = 787,237,731,969,698,176 - Step 5: Solve for x
x = 787,237,731,969,698,176/1,407,918,490.74 - Step 6: Final answer
x = 559,150,076.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.