Finding the Fourth Proportional to 7,838,554,983.92, 10,817,186,938.44 and 4,270,291,211.76
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Solution
The fourth proportional to 7,838,554,983.92, 10,817,186,938.44 and 4,270,291,211.76 is: 5,892,991,554.43
Step by Step Solution
- Step 1: Write the proportion equation
7,838,554,983.92 : 10,817,186,938.44 = 4,270,291,211.76 : x - Step 2: Convert to fraction form
7,838,554,983.92/10,817,186,938.44 = 4,270,291,211.76/x - Step 3: Cross multiply
7,838,554,983.92x = 10,817,186,938.44 × 4,270,291,211.76 - Step 4: Simplify right side
7,838,554,983.92x = 46,192,538,319,185,395,712 - Step 5: Solve for x
x = 46,192,538,319,185,395,712/7,838,554,983.92 - Step 6: Final answer
x = 5,892,991,554.43
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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.