Finding the Fourth Proportional to 197,646,715.49, 272,593,428.95 and 173,753,254.91
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Solution
The fourth proportional to 197,646,715.49, 272,593,428.95 and 173,753,254.91 is: 239,639,679.46
Step by Step Solution
- Step 1: Write the proportion equation
197,646,715.49 : 272,593,428.95 = 173,753,254.91 : x - Step 2: Convert to fraction form
197,646,715.49/272,593,428.95 = 173,753,254.91/x - Step 3: Cross multiply
197,646,715.49x = 272,593,428.95 × 173,753,254.91 - Step 4: Simplify right side
197,646,715.49x = 47,363,995,547,140,320 - Step 5: Solve for x
x = 47,363,995,547,140,320/197,646,715.49 - Step 6: Final answer
x = 239,639,679.46
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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.