Finding the Fourth Proportional to 1,073,320,948.68, 1,481,187,925.14 and 609,772,368.84
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Solution
The fourth proportional to 1,073,320,948.68, 1,481,187,925.14 and 609,772,368.84 is: 841,488,718.65
Step by Step Solution
- Step 1: Write the proportion equation
1,073,320,948.68 : 1,481,187,925.14 = 609,772,368.84 : x - Step 2: Convert to fraction form
1,073,320,948.68/1,481,187,925.14 = 609,772,368.84/x - Step 3: Cross multiply
1,073,320,948.68x = 1,481,187,925.14 × 609,772,368.84 - Step 4: Simplify right side
1,073,320,948.68x = 903,187,469,809,822,464 - Step 5: Solve for x
x = 903,187,469,809,822,464/1,073,320,948.68 - Step 6: Final answer
x = 841,488,718.65
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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.