Finding the Fourth Proportional to 430,094,909.12, 645,146,097.28 and 138,962,062.99
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Solution
The fourth proportional to 430,094,909.12, 645,146,097.28 and 138,962,062.99 is: 208,444,300.80
Step by Step Solution
- Step 1: Write the proportion equation
430,094,909.12 : 645,146,097.28 = 138,962,062.99 : x - Step 2: Convert to fraction form
430,094,909.12/645,146,097.28 = 138,962,062.99/x - Step 3: Cross multiply
430,094,909.12x = 645,146,097.28 × 138,962,062.99 - Step 4: Simplify right side
430,094,909.12x = 89,650,832,607,976,032 - Step 5: Solve for x
x = 89,650,832,607,976,032/430,094,909.12 - Step 6: Final answer
x = 208,444,300.80
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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.