Finding the Fourth Proportional to 647,731,983,451.08, 893,898,235,315.41 and 358,700,242,839.75
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Solution
The fourth proportional to 647,731,983,451.08, 893,898,235,315.41 and 358,700,242,839.75 is: 495,021,895,280.36
Step by Step Solution
- Step 1: Write the proportion equation
647,731,983,451.08 : 893,898,235,315.41 = 358,700,242,839.75 : x - Step 2: Convert to fraction form
647,731,983,451.08/893,898,235,315.41 = 358,700,242,839.75/x - Step 3: Cross multiply
647,731,983,451.08x = 893,898,235,315.41 × 358,700,242,839.75 - Step 4: Simplify right side
647,731,983,451.08x = 320,641,514,081,661,556,359,168 - Step 5: Solve for x
x = 320,641,514,081,661,556,359,168/647,731,983,451.08 - Step 6: Final answer
x = 495,021,895,280.36
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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.