Finding the Fourth Proportional to 11,390,854.86, 15,719,421.37 and 6,163,863.08
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Solution
The fourth proportional to 11,390,854.86, 15,719,421.37 and 6,163,863.08 is: 8,506,153.59
Step by Step Solution
- Step 1: Write the proportion equation
11,390,854.86 : 15,719,421.37 = 6,163,863.08 : x - Step 2: Convert to fraction form
11,390,854.86/15,719,421.37 = 6,163,863.08/x - Step 3: Cross multiply
11,390,854.86x = 15,719,421.37 × 6,163,863.08 - Step 4: Simplify right side
11,390,854.86x = 96,892,360,947,701.36 - Step 5: Solve for x
x = 96,892,360,947,701.36/11,390,854.86 - Step 6: Final answer
x = 8,506,153.59
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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.