Finding the Fourth Proportional to 1,229,461,918.08, 1,696,670,908.42 and 672,544,970.62
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Solution
The fourth proportional to 1,229,461,918.08, 1,696,670,908.42 and 672,544,970.62 is: 928,119,423.20
Step by Step Solution
- Step 1: Write the proportion equation
1,229,461,918.08 : 1,696,670,908.42 = 672,544,970.62 : x - Step 2: Convert to fraction form
1,229,461,918.08/1,696,670,908.42 = 672,544,970.62/x - Step 3: Cross multiply
1,229,461,918.08x = 1,696,670,908.42 × 672,544,970.62 - Step 4: Simplify right side
1,229,461,918.08x = 1,141,087,486,255,137,664 - Step 5: Solve for x
x = 1,141,087,486,255,137,664/1,229,461,918.08 - Step 6: Final answer
x = 928,119,423.20
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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.