Finding the Fourth Proportional to 28,134,542.34, 38,827,753.65 and 15,745,877.46
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Solution
The fourth proportional to 28,134,542.34, 38,827,753.65 and 15,745,877.46 is: 21,730,477.92
Step by Step Solution
- Step 1: Write the proportion equation
28,134,542.34 : 38,827,753.65 = 15,745,877.46 : x - Step 2: Convert to fraction form
28,134,542.34/38,827,753.65 = 15,745,877.46/x - Step 3: Cross multiply
28,134,542.34x = 38,827,753.65 × 15,745,877.46 - Step 4: Simplify right side
28,134,542.34x = 611,377,051,019,967.75 - Step 5: Solve for x
x = 611,377,051,019,967.75/28,134,542.34 - Step 6: Final answer
x = 21,730,477.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.