Finding the Fourth Proportional to 988,120,403.47, 1,363,519,310.34 and 564,650,028.85
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Solution
The fourth proportional to 988,120,403.47, 1,363,519,310.34 and 564,650,028.85 is: 779,167,412.41
Step by Step Solution
- Step 1: Write the proportion equation
988,120,403.47 : 1,363,519,310.34 = 564,650,028.85 : x - Step 2: Convert to fraction form
988,120,403.47/1,363,519,310.34 = 564,650,028.85/x - Step 3: Cross multiply
988,120,403.47x = 1,363,519,310.34 × 564,650,028.85 - Step 4: Simplify right side
988,120,403.47x = 769,911,217,921,013,120 - Step 5: Solve for x
x = 769,911,217,921,013,120/988,120,403.47 - Step 6: Final answer
x = 779,167,412.41
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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.