Finding the Fourth Proportional to 922,908,373.12, 1,273,613,459.52 and 499,521,960.96
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Solution
The fourth proportional to 922,908,373.12, 1,273,613,459.52 and 499,521,960.96 is: 689,340,254.50
Step by Step Solution
- Step 1: Write the proportion equation
922,908,373.12 : 1,273,613,459.52 = 499,521,960.96 : x - Step 2: Convert to fraction form
922,908,373.12/1,273,613,459.52 = 499,521,960.96/x - Step 3: Cross multiply
922,908,373.12x = 1,273,613,459.52 × 499,521,960.96 - Step 4: Simplify right side
922,908,373.12x = 636,197,892,804,480,000 - Step 5: Solve for x
x = 636,197,892,804,480,000/922,908,373.12 - Step 6: Final answer
x = 689,340,254.50
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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.