Finding the Fourth Proportional to 974,311,790.90, 1,461,467,686.35 and 767,687,530.10
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Solution
The fourth proportional to 974,311,790.90, 1,461,467,686.35 and 767,687,530.10 is: 1,151,531,295.15
Step by Step Solution
- Step 1: Write the proportion equation
974,311,790.90 : 1,461,467,686.35 = 767,687,530.10 : x - Step 2: Convert to fraction form
974,311,790.90/1,461,467,686.35 = 767,687,530.10/x - Step 3: Cross multiply
974,311,790.90x = 1,461,467,686.35 × 767,687,530.10 - Step 4: Simplify right side
974,311,790.90x = 1,121,950,518,454,992,896 - Step 5: Solve for x
x = 1,121,950,518,454,992,896/974,311,790.90 - Step 6: Final answer
x = 1,151,531,295.15
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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.