Finding the Fourth Proportional to 81,719,398.84, 112,774,020.78 and 44,549,704.12
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Solution
The fourth proportional to 81,719,398.84, 112,774,020.78 and 44,549,704.12 is: 61,479,273.34
Step by Step Solution
- Step 1: Write the proportion equation
81,719,398.84 : 112,774,020.78 = 44,549,704.12 : x - Step 2: Convert to fraction form
81,719,398.84/112,774,020.78 = 44,549,704.12/x - Step 3: Cross multiply
81,719,398.84x = 112,774,020.78 × 44,549,704.12 - Step 4: Simplify right side
81,719,398.84x = 5,024,049,258,171,731 - Step 5: Solve for x
x = 5,024,049,258,171,731/81,719,398.84 - Step 6: Final answer
x = 61,479,273.34
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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.