Finding the Fourth Proportional to 1,076,128,630.90, 1,614,192,946.35 and 815,935,117.30
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Solution
The fourth proportional to 1,076,128,630.90, 1,614,192,946.35 and 815,935,117.30 is: 1,223,902,675.95
Step by Step Solution
- Step 1: Write the proportion equation
1,076,128,630.90 : 1,614,192,946.35 = 815,935,117.30 : x - Step 2: Convert to fraction form
1,076,128,630.90/1,614,192,946.35 = 815,935,117.30/x - Step 3: Cross multiply
1,076,128,630.90x = 1,614,192,946.35 × 815,935,117.30 - Step 4: Simplify right side
1,076,128,630.90x = 1,317,076,711,024,919,808 - Step 5: Solve for x
x = 1,317,076,711,024,919,808/1,076,128,630.90 - Step 6: Final answer
x = 1,223,902,675.95
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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.