Finding the Fourth Proportional to 1,611,193,742,987.80, 2,223,436,054,387.60 and 879,582,149,534.94
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Solution
The fourth proportional to 1,611,193,742,987.80, 2,223,436,054,387.60 and 879,582,149,534.94 is: 1,213,817,191,497.46
Step by Step Solution
- Step 1: Write the proportion equation
1,611,193,742,987.80 : 2,223,436,054,387.60 = 879,582,149,534.94 : x - Step 2: Convert to fraction form
1,611,193,742,987.80/2,223,436,054,387.60 = 879,582,149,534.94/x - Step 3: Cross multiply
1,611,193,742,987.80x = 2,223,436,054,387.60 × 879,582,149,534.94 - Step 4: Simplify right side
1,611,193,742,987.80x = 1,955,694,664,071,730,855,673,856 - Step 5: Solve for x
x = 1,955,694,664,071,730,855,673,856/1,611,193,742,987.80 - Step 6: Final answer
x = 1,213,817,191,497.46
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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.