Finding the Fourth Proportional to 1,567,448,967.32, 2,163,079,927.99 and 862,600,948.76
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Solution
The fourth proportional to 1,567,448,967.32, 2,163,079,927.99 and 862,600,948.76 is: 1,190,389,503.60
Step by Step Solution
- Step 1: Write the proportion equation
1,567,448,967.32 : 2,163,079,927.99 = 862,600,948.76 : x - Step 2: Convert to fraction form
1,567,448,967.32/2,163,079,927.99 = 862,600,948.76/x - Step 3: Cross multiply
1,567,448,967.32x = 2,163,079,927.99 × 862,600,948.76 - Step 4: Simplify right side
1,567,448,967.32x = 1,865,874,798,134,415,872 - Step 5: Solve for x
x = 1,865,874,798,134,415,872/1,567,448,967.32 - Step 6: Final answer
x = 1,190,389,503.60
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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.