Finding the Fourth Proportional to 69,828,253.67, 96,365,979.42 and 38,888,422.95
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Solution
The fourth proportional to 69,828,253.67, 96,365,979.42 and 38,888,422.95 is: 53,667,688.49
Step by Step Solution
- Step 1: Write the proportion equation
69,828,253.67 : 96,365,979.42 = 38,888,422.95 : x - Step 2: Convert to fraction form
69,828,253.67/96,365,979.42 = 38,888,422.95/x - Step 3: Cross multiply
69,828,253.67x = 96,365,979.42 × 38,888,422.95 - Step 4: Simplify right side
69,828,253.67x = 3,747,520,965,903,515.50 - Step 5: Solve for x
x = 3,747,520,965,903,515.50/69,828,253.67 - Step 6: Final answer
x = 53,667,688.49
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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.