Finding the Fourth Proportional to 1,121,010,296.80, 1,681,515,445.20 and 1,114,553,288.65
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Solution
The fourth proportional to 1,121,010,296.80, 1,681,515,445.20 and 1,114,553,288.65 is: 1,671,829,932.98
Step by Step Solution
- Step 1: Write the proportion equation
1,121,010,296.80 : 1,681,515,445.20 = 1,114,553,288.65 : x - Step 2: Convert to fraction form
1,121,010,296.80/1,681,515,445.20 = 1,114,553,288.65/x - Step 3: Cross multiply
1,121,010,296.80x = 1,681,515,445.20 × 1,114,553,288.65 - Step 4: Simplify right side
1,121,010,296.80x = 1,874,138,569,363,429,120 - Step 5: Solve for x
x = 1,874,138,569,363,429,120/1,121,010,296.80 - Step 6: Final answer
x = 1,671,829,932.98
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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.