Finding the Fourth Proportional to 526,901,419.35, 727,124,813.25 and 288,708,753.42
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Solution
The fourth proportional to 526,901,419.35, 727,124,813.25 and 288,708,753.42 is: 398,418,547.96
Step by Step Solution
- Step 1: Write the proportion equation
526,901,419.35 : 727,124,813.25 = 288,708,753.42 : x - Step 2: Convert to fraction form
526,901,419.35/727,124,813.25 = 288,708,753.42/x - Step 3: Cross multiply
526,901,419.35x = 727,124,813.25 × 288,708,753.42 - Step 4: Simplify right side
526,901,419.35x = 209,927,298,414,157,824 - Step 5: Solve for x
x = 209,927,298,414,157,824/526,901,419.35 - Step 6: Final answer
x = 398,418,547.96
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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.