Finding the Fourth Proportional to 39,419,278.64, 59,129,055.12 and 12,125,386.16
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Solution
The fourth proportional to 39,419,278.64, 59,129,055.12 and 12,125,386.16 is: 18,188,121.43
Step by Step Solution
- Step 1: Write the proportion equation
39,419,278.64 : 59,129,055.12 = 12,125,386.16 : x - Step 2: Convert to fraction form
39,419,278.64/59,129,055.12 = 12,125,386.16/x - Step 3: Cross multiply
39,419,278.64x = 59,129,055.12 × 12,125,386.16 - Step 4: Simplify right side
39,419,278.64x = 716,962,626,605,925.12 - Step 5: Solve for x
x = 716,962,626,605,925.12/39,419,278.64 - Step 6: Final answer
x = 18,188,121.43
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.