Finding the Fourth Proportional to 2,020,854,350.10, 3,031,281,525.15 and 915,988,511.10
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Solution
The fourth proportional to 2,020,854,350.10, 3,031,281,525.15 and 915,988,511.10 is: 1,373,982,766.65
Step by Step Solution
- Step 1: Write the proportion equation
2,020,854,350.10 : 3,031,281,525.15 = 915,988,511.10 : x - Step 2: Convert to fraction form
2,020,854,350.10/3,031,281,525.15 = 915,988,511.10/x - Step 3: Cross multiply
2,020,854,350.10x = 3,031,281,525.15 × 915,988,511.10 - Step 4: Simplify right side
2,020,854,350.10x = 2,776,619,050,947,085,824 - Step 5: Solve for x
x = 2,776,619,050,947,085,824/2,020,854,350.10 - Step 6: Final answer
x = 1,373,982,766.65
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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.