Finding the Fourth Proportional to 1,249,085,363,153.30, 1,723,103,413,388.30 and 815,791,382,602.20
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Solution
The fourth proportional to 1,249,085,363,153.30, 1,723,103,413,388.30 and 815,791,382,602.20 is: 1,125,377,782,368.66
Step by Step Solution
- Step 1: Write the proportion equation
1,249,085,363,153.30 : 1,723,103,413,388.30 = 815,791,382,602.20 : x - Step 2: Convert to fraction form
1,249,085,363,153.30/1,723,103,413,388.30 = 815,791,382,602.20/x - Step 3: Cross multiply
1,249,085,363,153.30x = 1,723,103,413,388.30 × 815,791,382,602.20 - Step 4: Simplify right side
1,249,085,363,153.30x = 1,405,692,915,974,611,295,797,248 - Step 5: Solve for x
x = 1,405,692,915,974,611,295,797,248/1,249,085,363,153.30 - Step 6: Final answer
x = 1,125,377,782,368.66
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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.