Finding the Fourth Proportional to 28,292,011.49, 42,438,020.51 and 8,862,751.53
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Solution
The fourth proportional to 28,292,011.49, 42,438,020.51 and 8,862,751.53 is: 13,294,128.32
Step by Step Solution
- Step 1: Write the proportion equation
28,292,011.49 : 42,438,020.51 = 8,862,751.53 : x - Step 2: Convert to fraction form
28,292,011.49/42,438,020.51 = 8,862,751.53/x - Step 3: Cross multiply
28,292,011.49x = 42,438,020.51 × 8,862,751.53 - Step 4: Simplify right side
28,292,011.49x = 376,117,631,227,330.75 - Step 5: Solve for x
x = 376,117,631,227,330.75/28,292,011.49 - Step 6: Final answer
x = 13,294,128.32
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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.