Finding the Fourth Proportional to 8,139,202,309.70, 12,208,803,464.55 and 2,011,963,141.70
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Solution
The fourth proportional to 8,139,202,309.70, 12,208,803,464.55 and 2,011,963,141.70 is: 3,017,944,712.55
Step by Step Solution
- Step 1: Write the proportion equation
8,139,202,309.70 : 12,208,803,464.55 = 2,011,963,141.70 : x - Step 2: Convert to fraction form
8,139,202,309.70/12,208,803,464.55 = 2,011,963,141.70/x - Step 3: Cross multiply
8,139,202,309.70x = 12,208,803,464.55 × 2,011,963,141.70 - Step 4: Simplify right side
8,139,202,309.70x = 24,563,662,574,933,860,352 - Step 5: Solve for x
x = 24,563,662,574,933,860,352/8,139,202,309.70 - Step 6: Final answer
x = 3,017,944,712.55
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Similar ratio
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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.