Finding the Fourth Proportional to 63,653,517.24, 87,772,342.38 and 42,991,090.68
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Solution
The fourth proportional to 63,653,517.24, 87,772,342.38 and 42,991,090.68 is: 59,280,757.67
Step by Step Solution
- Step 1: Write the proportion equation
63,653,517.24 : 87,772,342.38 = 42,991,090.68 : x - Step 2: Convert to fraction form
63,653,517.24/87,772,342.38 = 42,991,090.68/x - Step 3: Cross multiply
63,653,517.24x = 87,772,342.38 × 42,991,090.68 - Step 4: Simplify right side
63,653,517.24x = 3,773,428,730,454,587 - Step 5: Solve for x
x = 3,773,428,730,454,587/63,653,517.24 - Step 6: Final answer
x = 59,280,757.67
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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.