Finding the Fourth Proportional to 868,996,166.78, 1,199,206,434.92 and 472,519,425.62
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Solution
The fourth proportional to 868,996,166.78, 1,199,206,434.92 and 472,519,425.62 is: 652,072,307.67
Step by Step Solution
- Step 1: Write the proportion equation
868,996,166.78 : 1,199,206,434.92 = 472,519,425.62 : x - Step 2: Convert to fraction form
868,996,166.78/1,199,206,434.92 = 472,519,425.62/x - Step 3: Cross multiply
868,996,166.78x = 1,199,206,434.92 × 472,519,425.62 - Step 4: Simplify right side
868,996,166.78x = 566,648,335,828,206,336 - Step 5: Solve for x
x = 566,648,335,828,206,336/868,996,166.78 - Step 6: Final answer
x = 652,072,307.67
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1.5x scale
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.