Finding the Fourth Proportional to 70,590,979.16, 97,417,916.98 and 39,230,349.98
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Solution
The fourth proportional to 70,590,979.16, 97,417,916.98 and 39,230,349.98 is: 54,139,197.71
Step by Step Solution
- Step 1: Write the proportion equation
70,590,979.16 : 97,417,916.98 = 39,230,349.98 : x - Step 2: Convert to fraction form
70,590,979.16/97,417,916.98 = 39,230,349.98/x - Step 3: Cross multiply
70,590,979.16x = 97,417,916.98 × 39,230,349.98 - Step 4: Simplify right side
70,590,979.16x = 3,821,738,977,447,984.50 - Step 5: Solve for x
x = 3,821,738,977,447,984.50/70,590,979.16 - Step 6: Final answer
x = 54,139,197.71
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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.