Finding the Fourth Proportional to 64,378,307.44, 89,076,009.99 and 56,135,557.90
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Solution
The fourth proportional to 64,378,307.44, 89,076,009.99 and 56,135,557.90 is: 77,671,062.12
Step by Step Solution
- Step 1: Write the proportion equation
64,378,307.44 : 89,076,009.99 = 56,135,557.90 : x - Step 2: Convert to fraction form
64,378,307.44/89,076,009.99 = 56,135,557.90/x - Step 3: Cross multiply
64,378,307.44x = 89,076,009.99 × 56,135,557.90 - Step 4: Simplify right side
64,378,307.44x = 5,000,331,516,294,623 - Step 5: Solve for x
x = 5,000,331,516,294,623/64,378,307.44 - Step 6: Final answer
x = 77,671,062.12
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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.