Finding the Fourth Proportional to 113,708,221.48, 156,917,345.70 and 61,497,257.14
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Solution
The fourth proportional to 113,708,221.48, 156,917,345.70 and 61,497,257.14 is: 84,866,214.88
Step by Step Solution
- Step 1: Write the proportion equation
113,708,221.48 : 156,917,345.70 = 61,497,257.14 : x - Step 2: Convert to fraction form
113,708,221.48/156,917,345.70 = 61,497,257.14/x - Step 3: Cross multiply
113,708,221.48x = 156,917,345.70 × 61,497,257.14 - Step 4: Simplify right side
113,708,221.48x = 9,649,986,358,239,172 - Step 5: Solve for x
x = 9,649,986,358,239,172/113,708,221.48 - Step 6: Final answer
x = 84,866,214.88
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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.