Finding the Fourth Proportional to 52,689,394.34, 72,712,225.05 and 28,846,623.68
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Solution
The fourth proportional to 52,689,394.34, 72,712,225.05 and 28,846,623.68 is: 39,808,811.99
Step by Step Solution
- Step 1: Write the proportion equation
52,689,394.34 : 72,712,225.05 = 28,846,623.68 : x - Step 2: Convert to fraction form
52,689,394.34/72,712,225.05 = 28,846,623.68/x - Step 3: Cross multiply
52,689,394.34x = 72,712,225.05 × 28,846,623.68 - Step 4: Simplify right side
52,689,394.34x = 2,097,502,192,952,819 - Step 5: Solve for x
x = 2,097,502,192,952,819/52,689,394.34 - Step 6: Final answer
x = 39,808,811.99
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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.