Finding the Fourth Proportional to 81,719,397.84, 112,774,019.40 and 44,549,703.12
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Solution
The fourth proportional to 81,719,397.84, 112,774,019.40 and 44,549,703.12 is: 61,479,271.96
Step by Step Solution
- Step 1: Write the proportion equation
81,719,397.84 : 112,774,019.40 = 44,549,703.12 : x - Step 2: Convert to fraction form
81,719,397.84/112,774,019.40 = 44,549,703.12/x - Step 3: Cross multiply
81,719,397.84x = 112,774,019.40 × 44,549,703.12 - Step 4: Simplify right side
81,719,397.84x = 5,024,049,083,919,120 - Step 5: Solve for x
x = 5,024,049,083,919,120/81,719,397.84 - Step 6: Final answer
x = 61,479,271.96
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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.