Finding the Fourth Proportional to 1,205,626,440.24, 1,663,289,675.64 and 696,652,841.16
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Solution
The fourth proportional to 1,205,626,440.24, 1,663,289,675.64 and 696,652,841.16 is: 961,106,557.99
Step by Step Solution
- Step 1: Write the proportion equation
1,205,626,440.24 : 1,663,289,675.64 = 696,652,841.16 : x - Step 2: Convert to fraction form
1,205,626,440.24/1,663,289,675.64 = 696,652,841.16/x - Step 3: Cross multiply
1,205,626,440.24x = 1,663,289,675.64 × 696,652,841.16 - Step 4: Simplify right side
1,205,626,440.24x = 1,158,735,478,206,700,800 - Step 5: Solve for x
x = 1,158,735,478,206,700,800/1,205,626,440.24 - Step 6: Final answer
x = 961,106,557.99
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1.5x scale
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.