Finding the Fourth Proportional to 70,590,985.47, 97,417,925.42 and 39,230,356.02
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Solution
The fourth proportional to 70,590,985.47, 97,417,925.42 and 39,230,356.02 is: 54,139,205.90
Step by Step Solution
- Step 1: Write the proportion equation
70,590,985.47 : 97,417,925.42 = 39,230,356.02 : x - Step 2: Convert to fraction form
70,590,985.47/97,417,925.42 = 39,230,356.02/x - Step 3: Cross multiply
70,590,985.47x = 97,417,925.42 × 39,230,356.02 - Step 4: Simplify right side
70,590,985.47x = 3,821,739,896,760,257 - Step 5: Solve for x
x = 3,821,739,896,760,257/70,590,985.47 - Step 6: Final answer
x = 54,139,205.90
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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.