Finding the Fourth Proportional to 11,184,681.17, 15,434,712.45 and 6,289,901.79
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Solution
The fourth proportional to 11,184,681.17, 15,434,712.45 and 6,289,901.79 is: 8,679,981.49
Step by Step Solution
- Step 1: Write the proportion equation
11,184,681.17 : 15,434,712.45 = 6,289,901.79 : x - Step 2: Convert to fraction form
11,184,681.17/15,434,712.45 = 6,289,901.79/x - Step 3: Cross multiply
11,184,681.17x = 15,434,712.45 × 6,289,901.79 - Step 4: Simplify right side
11,184,681.17x = 97,082,825,467,390.28 - Step 5: Solve for x
x = 97,082,825,467,390.28/11,184,681.17 - Step 6: Final answer
x = 8,679,981.49
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Double scale
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1.5x scale
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.