Finding the Fourth Proportional to 1,493,974,289.80, 2,240,961,434.70 and 977,996,254.60
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Solution
The fourth proportional to 1,493,974,289.80, 2,240,961,434.70 and 977,996,254.60 is: 1,466,994,381.90
Step by Step Solution
- Step 1: Write the proportion equation
1,493,974,289.80 : 2,240,961,434.70 = 977,996,254.60 : x - Step 2: Convert to fraction form
1,493,974,289.80/2,240,961,434.70 = 977,996,254.60/x - Step 3: Cross multiply
1,493,974,289.80x = 2,240,961,434.70 × 977,996,254.60 - Step 4: Simplify right side
1,493,974,289.80x = 2,191,651,889,839,642,368 - Step 5: Solve for x
x = 2,191,651,889,839,642,368/1,493,974,289.80 - Step 6: Final answer
x = 1,466,994,381.90
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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.