Finding the Fourth Proportional to 153,382,595.87, 211,673,205.63 and 90,712,415.94
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Solution
The fourth proportional to 153,382,595.87, 211,673,205.63 and 90,712,415.94 is: 125,186,223.14
Step by Step Solution
- Step 1: Write the proportion equation
153,382,595.87 : 211,673,205.63 = 90,712,415.94 : x - Step 2: Convert to fraction form
153,382,595.87/211,673,205.63 = 90,712,415.94/x - Step 3: Cross multiply
153,382,595.87x = 211,673,205.63 × 90,712,415.94 - Step 4: Simplify right side
153,382,595.87x = 19,201,387,872,461,708 - Step 5: Solve for x
x = 19,201,387,872,461,708/153,382,595.87 - Step 6: Final answer
x = 125,186,223.14
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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.