Finding the Fourth Proportional to 867,199,990.98, 1,196,737,136.25 and 470,722,723.14
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Solution
The fourth proportional to 867,199,990.98, 1,196,737,136.25 and 470,722,723.14 is: 649,597,981.45
Step by Step Solution
- Step 1: Write the proportion equation
867,199,990.98 : 1,196,737,136.25 = 470,722,723.14 : x - Step 2: Convert to fraction form
867,199,990.98/1,196,737,136.25 = 470,722,723.14/x - Step 3: Cross multiply
867,199,990.98x = 1,196,737,136.25 × 470,722,723.14 - Step 4: Simplify right side
867,199,990.98x = 563,331,363,658,365,184 - Step 5: Solve for x
x = 563,331,363,658,365,184/867,199,990.98 - Step 6: Final answer
x = 649,597,981.45
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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.