Finding the Fourth Proportional to 1,121,009,967.80, 1,681,514,951.70 and 1,114,552,959.65
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Solution
The fourth proportional to 1,121,009,967.80, 1,681,514,951.70 and 1,114,552,959.65 is: 1,671,829,439.48
Step by Step Solution
- Step 1: Write the proportion equation
1,121,009,967.80 : 1,681,514,951.70 = 1,114,552,959.65 : x - Step 2: Convert to fraction form
1,121,009,967.80/1,681,514,951.70 = 1,114,552,959.65/x - Step 3: Cross multiply
1,121,009,967.80x = 1,681,514,951.70 × 1,114,552,959.65 - Step 4: Simplify right side
1,121,009,967.80x = 1,874,137,466,112,962,048 - Step 5: Solve for x
x = 1,874,137,466,112,962,048/1,121,009,967.80 - Step 6: Final answer
x = 1,671,829,439.48
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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.