Finding the Fourth Proportional to 28,732,932.06, 39,652,282.35 and 15,681,030.54
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Solution
The fourth proportional to 28,732,932.06, 39,652,282.35 and 15,681,030.54 is: 21,640,278.45
Step by Step Solution
- Step 1: Write the proportion equation
28,732,932.06 : 39,652,282.35 = 15,681,030.54 : x - Step 2: Convert to fraction form
28,732,932.06/39,652,282.35 = 15,681,030.54/x - Step 3: Cross multiply
28,732,932.06x = 39,652,282.35 × 15,681,030.54 - Step 4: Simplify right side
28,732,932.06x = 621,788,650,511,053 - Step 5: Solve for x
x = 621,788,650,511,053/28,732,932.06 - Step 6: Final answer
x = 21,640,278.45
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.