Finding the Fourth Proportional to 19,232,768.98, 28,803,356.88 and 11,128,665.52
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Solution
The fourth proportional to 19,232,768.98, 28,803,356.88 and 11,128,665.52 is: 16,666,498.98
Step by Step Solution
- Step 1: Write the proportion equation
19,232,768.98 : 28,803,356.88 = 11,128,665.52 : x - Step 2: Convert to fraction form
19,232,768.98/28,803,356.88 = 11,128,665.52/x - Step 3: Cross multiply
19,232,768.98x = 28,803,356.88 × 11,128,665.52 - Step 4: Simplify right side
19,232,768.98x = 320,542,924,570,710.75 - Step 5: Solve for x
x = 320,542,924,570,710.75/19,232,768.98 - Step 6: Final answer
x = 16,666,498.98
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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.