Finding the Fourth Proportional to 19,539,266.16, 26,946,545.76 and 12,197,776.08
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Solution
The fourth proportional to 19,539,266.16, 26,946,545.76 and 12,197,776.08 is: 16,821,917.91
Step by Step Solution
- Step 1: Write the proportion equation
19,539,266.16 : 26,946,545.76 = 12,197,776.08 : x - Step 2: Convert to fraction form
19,539,266.16/26,946,545.76 = 12,197,776.08/x - Step 3: Cross multiply
19,539,266.16x = 26,946,545.76 × 12,197,776.08 - Step 4: Simplify right side
19,539,266.16x = 328,687,931,309,953.44 - Step 5: Solve for x
x = 328,687,931,309,953.44/19,539,266.16 - Step 6: Final answer
x = 16,821,917.91
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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.