Finding the Fourth Proportional to 987,488,894.74, 1,481,230,389.51 and 250,557,374.74
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Solution
The fourth proportional to 987,488,894.74, 1,481,230,389.51 and 250,557,374.74 is: 375,835,312.94
Step by Step Solution
- Step 1: Write the proportion equation
987,488,894.74 : 1,481,230,389.51 = 250,557,374.74 : x - Step 2: Convert to fraction form
987,488,894.74/1,481,230,389.51 = 250,557,374.74/x - Step 3: Cross multiply
987,488,894.74x = 1,481,230,389.51 × 250,557,374.74 - Step 4: Simplify right side
987,488,894.74x = 371,133,197,776,078,080 - Step 5: Solve for x
x = 371,133,197,776,078,080/987,488,894.74 - Step 6: Final answer
x = 375,835,312.94
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1.5x scale
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.