Finding the Fourth Proportional to 1,512,936,927.53, 2,087,763,043.56 and 877,808,221.73
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Solution
The fourth proportional to 1,512,936,927.53, 2,087,763,043.56 and 877,808,221.73 is: 1,211,323,176.34
Step by Step Solution
- Step 1: Write the proportion equation
1,512,936,927.53 : 2,087,763,043.56 = 877,808,221.73 : x - Step 2: Convert to fraction form
1,512,936,927.53/2,087,763,043.56 = 877,808,221.73/x - Step 3: Cross multiply
1,512,936,927.53x = 2,087,763,043.56 × 877,808,221.73 - Step 4: Simplify right side
1,512,936,927.53x = 1,832,655,564,661,016,064 - Step 5: Solve for x
x = 1,832,655,564,661,016,064/1,512,936,927.53 - Step 6: Final answer
x = 1,211,323,176.34
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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.