Finding the Fourth Proportional to 5,615,778,752.40, 8,423,668,128.60 and 3,983,192,000.40
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Solution
The fourth proportional to 5,615,778,752.40, 8,423,668,128.60 and 3,983,192,000.40 is: 5,974,788,000.60
Step by Step Solution
- Step 1: Write the proportion equation
5,615,778,752.40 : 8,423,668,128.60 = 3,983,192,000.40 : x - Step 2: Convert to fraction form
5,615,778,752.40/8,423,668,128.60 = 3,983,192,000.40/x - Step 3: Cross multiply
5,615,778,752.40x = 8,423,668,128.60 × 3,983,192,000.40 - Step 4: Simplify right side
5,615,778,752.40x = 33,553,087,503,863,959,552 - Step 5: Solve for x
x = 33,553,087,503,863,959,552/5,615,778,752.40 - Step 6: Final answer
x = 5,974,788,000.60
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Double scale
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1.5x scale
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.