Finding the Fourth Proportional to 885,708,871.60, 1,328,563,307.40 and 340,468,193.20
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Solution
The fourth proportional to 885,708,871.60, 1,328,563,307.40 and 340,468,193.20 is: 510,702,289.80
Step by Step Solution
- Step 1: Write the proportion equation
885,708,871.60 : 1,328,563,307.40 = 340,468,193.20 : x - Step 2: Convert to fraction form
885,708,871.60/1,328,563,307.40 = 340,468,193.20/x - Step 3: Cross multiply
885,708,871.60x = 1,328,563,307.40 × 340,468,193.20 - Step 4: Simplify right side
885,708,871.60x = 452,333,548,822,294,208 - Step 5: Solve for x
x = 452,333,548,822,294,208/885,708,871.60 - Step 6: Final answer
x = 510,702,289.80
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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.