Finding the Fourth Proportional to 63,781,999.19, 88,046,366.07 and 42,886,143.66
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Solution
The fourth proportional to 63,781,999.19, 88,046,366.07 and 42,886,143.66 is: 59,201,171.99
Step by Step Solution
- Step 1: Write the proportion equation
63,781,999.19 : 88,046,366.07 = 42,886,143.66 : x - Step 2: Convert to fraction form
63,781,999.19/88,046,366.07 = 42,886,143.66/x - Step 3: Cross multiply
63,781,999.19x = 88,046,366.07 × 42,886,143.66 - Step 4: Simplify right side
63,781,999.19x = 3,775,969,104,018,969 - Step 5: Solve for x
x = 3,775,969,104,018,969/63,781,999.19 - Step 6: Final answer
x = 59,201,171.99
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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.