Finding the Fourth Proportional to 462,981,746.01, 638,915,509.40 and 251,288,652.68
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Solution
The fourth proportional to 462,981,746.01, 638,915,509.40 and 251,288,652.68 is: 346,778,720.58
Step by Step Solution
- Step 1: Write the proportion equation
462,981,746.01 : 638,915,509.40 = 251,288,652.68 : x - Step 2: Convert to fraction form
462,981,746.01/638,915,509.40 = 251,288,652.68/x - Step 3: Cross multiply
462,981,746.01x = 638,915,509.40 × 251,288,652.68 - Step 4: Simplify right side
462,981,746.01x = 160,552,217,531,426,784 - Step 5: Solve for x
x = 160,552,217,531,426,784/462,981,746.01 - Step 6: Final answer
x = 346,778,720.58
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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.