Finding the Fourth Proportional to 430,345,869.29, 645,516,656.97 and 168,057,069.92
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Solution
The fourth proportional to 430,345,869.29, 645,516,656.97 and 168,057,069.92 is: 252,084,766.45
Step by Step Solution
- Step 1: Write the proportion equation
430,345,869.29 : 645,516,656.97 = 168,057,069.92 : x - Step 2: Convert to fraction form
430,345,869.29/645,516,656.97 = 168,057,069.92/x - Step 3: Cross multiply
430,345,869.29x = 645,516,656.97 × 168,057,069.92 - Step 4: Simplify right side
430,345,869.29x = 108,483,637,950,864,080 - Step 5: Solve for x
x = 108,483,637,950,864,080/430,345,869.29 - Step 6: Final answer
x = 252,084,766.45
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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.