Finding the Fourth Proportional to 1,492,996,903.80, 2,239,495,355.70 and 523,648,519.80
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Solution
The fourth proportional to 1,492,996,903.80, 2,239,495,355.70 and 523,648,519.80 is: 785,472,779.70
Step by Step Solution
- Step 1: Write the proportion equation
1,492,996,903.80 : 2,239,495,355.70 = 523,648,519.80 : x - Step 2: Convert to fraction form
1,492,996,903.80/2,239,495,355.70 = 523,648,519.80/x - Step 3: Cross multiply
1,492,996,903.80x = 2,239,495,355.70 × 523,648,519.80 - Step 4: Simplify right side
1,492,996,903.80x = 1,172,708,428,111,279,360 - Step 5: Solve for x
x = 1,172,708,428,111,279,360/1,492,996,903.80 - Step 6: Final answer
x = 785,472,779.70
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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.