Finding the Fourth Proportional to 43,578,024.40, 65,360,038.20 and 13,278,840.40
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Solution
The fourth proportional to 43,578,024.40, 65,360,038.20 and 13,278,840.40 is: 19,916,128.09
Step by Step Solution
- Step 1: Write the proportion equation
43,578,024.40 : 65,360,038.20 = 13,278,840.40 : x - Step 2: Convert to fraction form
43,578,024.40/65,360,038.20 = 13,278,840.40/x - Step 3: Cross multiply
43,578,024.40x = 65,360,038.20 × 13,278,840.40 - Step 4: Simplify right side
43,578,024.40x = 867,905,515,795,703.38 - Step 5: Solve for x
x = 867,905,515,795,703.38/43,578,024.40 - Step 6: Final answer
x = 19,916,128.09
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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.