Finding the Fourth Proportional to 15,584,658.29, 21,506,857.61 and 8,709,140.35
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Solution
The fourth proportional to 15,584,658.29, 21,506,857.61 and 8,709,140.35 is: 12,018,629.99
Step by Step Solution
- Step 1: Write the proportion equation
15,584,658.29 : 21,506,857.61 = 8,709,140.35 : x - Step 2: Convert to fraction form
15,584,658.29/21,506,857.61 = 8,709,140.35/x - Step 3: Cross multiply
15,584,658.29x = 21,506,857.61 × 8,709,140.35 - Step 4: Simplify right side
15,584,658.29x = 187,306,241,445,282.34 - Step 5: Solve for x
x = 187,306,241,445,282.34/15,584,658.29 - Step 6: Final answer
x = 12,018,629.99
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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.