Finding the Fourth Proportional to 1,991,673,387.66, 2,748,750,288.30 and 1,133,556,604.86
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Solution
The fourth proportional to 1,991,673,387.66, 2,748,750,288.30 and 1,133,556,604.86 is: 1,564,445,286.92
Step by Step Solution
- Step 1: Write the proportion equation
1,991,673,387.66 : 2,748,750,288.30 = 1,133,556,604.86 : x - Step 2: Convert to fraction form
1,991,673,387.66/2,748,750,288.30 = 1,133,556,604.86/x - Step 3: Cross multiply
1,991,673,387.66x = 2,748,750,288.30 × 1,133,556,604.86 - Step 4: Simplify right side
1,991,673,387.66x = 3,115,864,044,413,294,080 - Step 5: Solve for x
x = 3,115,864,044,413,294,080/1,991,673,387.66 - Step 6: Final answer
x = 1,564,445,286.92
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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.