Finding the Fourth Proportional to 53,449,412.18, 73,761,823.41 and 31,418,870.18
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Solution
The fourth proportional to 53,449,412.18, 73,761,823.41 and 31,418,870.18 is: 43,359,001.71
Step by Step Solution
- Step 1: Write the proportion equation
53,449,412.18 : 73,761,823.41 = 31,418,870.18 : x - Step 2: Convert to fraction form
53,449,412.18/73,761,823.41 = 31,418,870.18/x - Step 3: Cross multiply
53,449,412.18x = 73,761,823.41 × 31,418,870.18 - Step 4: Simplify right side
53,449,412.18x = 2,317,513,153,958,875 - Step 5: Solve for x
x = 2,317,513,153,958,875/53,449,412.18 - Step 6: Final answer
x = 43,359,001.71
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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.