Finding the Fourth Proportional to 7,900,348,911.53, 11,842,227,868.51 and 2,658,137,164.28
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Solution
The fourth proportional to 7,900,348,911.53, 11,842,227,868.51 and 2,658,137,164.28 is: 3,984,414,657.84
Step by Step Solution
- Step 1: Write the proportion equation
7,900,348,911.53 : 11,842,227,868.51 = 2,658,137,164.28 : x - Step 2: Convert to fraction form
7,900,348,911.53/11,842,227,868.51 = 2,658,137,164.28/x - Step 3: Cross multiply
7,900,348,911.53x = 11,842,227,868.51 × 2,658,137,164.28 - Step 4: Simplify right side
7,900,348,911.53x = 31,478,266,005,191,020,544 - Step 5: Solve for x
x = 31,478,266,005,191,020,544/7,900,348,911.53 - Step 6: Final answer
x = 3,984,414,657.84
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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.