Finding the Fourth Proportional to 76,688,676,602.70, 115,033,014,904.05 and 58,092,493,130.70
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Solution
The fourth proportional to 76,688,676,602.70, 115,033,014,904.05 and 58,092,493,130.70 is: 87,138,739,696.05
Step by Step Solution
- Step 1: Write the proportion equation
76,688,676,602.70 : 115,033,014,904.05 = 58,092,493,130.70 : x - Step 2: Convert to fraction form
76,688,676,602.70/115,033,014,904.05 = 58,092,493,130.70/x - Step 3: Cross multiply
76,688,676,602.70x = 115,033,014,904.05 × 58,092,493,130.70 - Step 4: Simplify right side
76,688,676,602.70x = 6,682,554,628,117,234,712,576 - Step 5: Solve for x
x = 6,682,554,628,117,234,712,576/76,688,676,602.70 - Step 6: Final answer
x = 87,138,739,696.05
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Double scale
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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.