Finding the Fourth Proportional to 145,657,641.13, 201,007,625.40 and 78,676,598.94
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Solution
The fourth proportional to 145,657,641.13, 201,007,625.40 and 78,676,598.94 is: 108,573,750.09
Step by Step Solution
- Step 1: Write the proportion equation
145,657,641.13 : 201,007,625.40 = 78,676,598.94 : x - Step 2: Convert to fraction form
145,657,641.13/201,007,625.40 = 78,676,598.94/x - Step 3: Cross multiply
145,657,641.13x = 201,007,625.40 × 78,676,598.94 - Step 4: Simplify right side
145,657,641.13x = 15,814,596,326,501,910 - Step 5: Solve for x
x = 15,814,596,326,501,910/145,657,641.13 - Step 6: Final answer
x = 108,573,750.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.