Finding the Fourth Proportional to 249,580,983,714.57, 344,392,700,903.46 and 139,721,345,518.99
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Solution
The fourth proportional to 249,580,983,714.57, 344,392,700,903.46 and 139,721,345,518.99 is: 192,799,190,230.70
Step by Step Solution
- Step 1: Write the proportion equation
249,580,983,714.57 : 344,392,700,903.46 = 139,721,345,518.99 : x - Step 2: Convert to fraction form
249,580,983,714.57/344,392,700,903.46 = 139,721,345,518.99/x - Step 3: Cross multiply
249,580,983,714.57x = 344,392,700,903.46 × 139,721,345,518.99 - Step 4: Simplify right side
249,580,983,714.57x = 48,119,011,557,150,514,216,960 - Step 5: Solve for x
x = 48,119,011,557,150,514,216,960/249,580,983,714.57 - Step 6: Final answer
x = 192,799,190,230.70
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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.