Finding the Fourth Proportional to 98,402,631.93, 135,794,824.71 and 53,748,632.51
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Solution
The fourth proportional to 98,402,631.93, 135,794,824.71 and 53,748,632.51 is: 74,172,671.89
Step by Step Solution
- Step 1: Write the proportion equation
98,402,631.93 : 135,794,824.71 = 53,748,632.51 : x - Step 2: Convert to fraction form
98,402,631.93/135,794,824.71 = 53,748,632.51/x - Step 3: Cross multiply
98,402,631.93x = 135,794,824.71 × 53,748,632.51 - Step 4: Simplify right side
98,402,631.93x = 7,298,786,130,755,183 - Step 5: Solve for x
x = 7,298,786,130,755,183/98,402,631.93 - Step 6: Final answer
x = 74,172,671.89
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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.