Finding the Fourth Proportional to 992,877,964.40, 1,489,316,946.60 and 885,739,458.80
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Solution
The fourth proportional to 992,877,964.40, 1,489,316,946.60 and 885,739,458.80 is: 1,328,609,188.20
Step by Step Solution
- Step 1: Write the proportion equation
992,877,964.40 : 1,489,316,946.60 = 885,739,458.80 : x - Step 2: Convert to fraction form
992,877,964.40/1,489,316,946.60 = 885,739,458.80/x - Step 3: Cross multiply
992,877,964.40x = 1,489,316,946.60 × 885,739,458.80 - Step 4: Simplify right side
992,877,964.40x = 1,319,146,786,263,152,384 - Step 5: Solve for x
x = 1,319,146,786,263,152,384/992,877,964.40 - Step 6: Final answer
x = 1,328,609,188.20
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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.