Finding the Fourth Proportional to 3,219,272,020.10, 4,828,908,030.15 and 2,637,662,989.70
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Solution
The fourth proportional to 3,219,272,020.10, 4,828,908,030.15 and 2,637,662,989.70 is: 3,956,494,484.55
Step by Step Solution
- Step 1: Write the proportion equation
3,219,272,020.10 : 4,828,908,030.15 = 2,637,662,989.70 : x - Step 2: Convert to fraction form
3,219,272,020.10/4,828,908,030.15 = 2,637,662,989.70/x - Step 3: Cross multiply
3,219,272,020.10x = 4,828,908,030.15 × 2,637,662,989.70 - Step 4: Simplify right side
3,219,272,020.10x = 12,737,031,991,791,783,936 - Step 5: Solve for x
x = 12,737,031,991,791,783,936/3,219,272,020.10 - Step 6: Final answer
x = 3,956,494,484.55
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1.5x scale
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.