Finding the Fourth Proportional to 1,197,834,963.48, 1,796,480,818.74 and 542,353,272.12
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Solution
The fourth proportional to 1,197,834,963.48, 1,796,480,818.74 and 542,353,272.12 is: 813,406,921.70
Step by Step Solution
- Step 1: Write the proportion equation
1,197,834,963.48 : 1,796,480,818.74 = 542,353,272.12 : x - Step 2: Convert to fraction form
1,197,834,963.48/1,796,480,818.74 = 542,353,272.12/x - Step 3: Cross multiply
1,197,834,963.48x = 1,796,480,818.74 × 542,353,272.12 - Step 4: Simplify right side
1,197,834,963.48x = 974,327,250,344,455,680 - Step 5: Solve for x
x = 974,327,250,344,455,680/1,197,834,963.48 - Step 6: Final answer
x = 813,406,921.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.