Finding the Fourth Proportional to 98,609,246.80, 136,075,781.36 and 53,954,252.40
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Solution
The fourth proportional to 98,609,246.80, 136,075,781.36 and 53,954,252.40 is: 74,454,143.92
Step by Step Solution
- Step 1: Write the proportion equation
98,609,246.80 : 136,075,781.36 = 53,954,252.40 : x - Step 2: Convert to fraction form
98,609,246.80/136,075,781.36 = 53,954,252.40/x - Step 3: Cross multiply
98,609,246.80x = 136,075,781.36 × 53,954,252.40 - Step 4: Simplify right side
98,609,246.80x = 7,341,867,053,024,656 - Step 5: Solve for x
x = 7,341,867,053,024,656/98,609,246.80 - Step 6: Final answer
x = 74,454,143.92
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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.