Finding the Fourth Proportional to 355,578,756.80, 533,368,135.20 and 317,031,569.60
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Solution
The fourth proportional to 355,578,756.80, 533,368,135.20 and 317,031,569.60 is: 475,547,354.40
Step by Step Solution
- Step 1: Write the proportion equation
355,578,756.80 : 533,368,135.20 = 317,031,569.60 : x - Step 2: Convert to fraction form
355,578,756.80/533,368,135.20 = 317,031,569.60/x - Step 3: Cross multiply
355,578,756.80x = 533,368,135.20 × 317,031,569.60 - Step 4: Simplify right side
355,578,756.80x = 169,094,537,077,081,024 - Step 5: Solve for x
x = 169,094,537,077,081,024/355,578,756.80 - Step 6: Final answer
x = 475,547,354.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.