Finding the Fourth Proportional to 5,312,078,132.80, 7,328,020,076.36 and 3,167,172,070.84
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Solution
The fourth proportional to 5,312,078,132.80, 7,328,020,076.36 and 3,167,172,070.84 is: 4,369,118,815.68
Step by Step Solution
- Step 1: Write the proportion equation
5,312,078,132.80 : 7,328,020,076.36 = 3,167,172,070.84 : x - Step 2: Convert to fraction form
5,312,078,132.80/7,328,020,076.36 = 3,167,172,070.84/x - Step 3: Cross multiply
5,312,078,132.80x = 7,328,020,076.36 × 3,167,172,070.84 - Step 4: Simplify right side
5,312,078,132.80x = 23,209,100,520,402,194,432 - Step 5: Solve for x
x = 23,209,100,520,402,194,432/5,312,078,132.80 - Step 6: Final answer
x = 4,369,118,815.68
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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.