Finding the Fourth Proportional to 868,924,884.80, 1,199,159,423.18 and 539,006,312.00
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Solution
The fourth proportional to 868,924,884.80, 1,199,159,423.18 and 539,006,312.00 is: 743,855,435.02
Step by Step Solution
- Step 1: Write the proportion equation
868,924,884.80 : 1,199,159,423.18 = 539,006,312.00 : x - Step 2: Convert to fraction form
868,924,884.80/1,199,159,423.18 = 539,006,312.00/x - Step 3: Cross multiply
868,924,884.80x = 1,199,159,423.18 × 539,006,312.00 - Step 4: Simplify right side
868,924,884.80x = 646,354,498,179,608,320 - Step 5: Solve for x
x = 646,354,498,179,608,320/868,924,884.80 - Step 6: Final answer
x = 743,855,435.02
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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.