Finding the Fourth Proportional to 1,351,539,979,079.60, 1,865,285,066,182.20 and 802,833,451,888.35
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Solution
The fourth proportional to 1,351,539,979,079.60, 1,865,285,066,182.20 and 802,833,451,888.35 is: 1,108,005,143,479.85
Step by Step Solution
- Step 1: Write the proportion equation
1,351,539,979,079.60 : 1,865,285,066,182.20 = 802,833,451,888.35 : x - Step 2: Convert to fraction form
1,351,539,979,079.60/1,865,285,066,182.20 = 802,833,451,888.35/x - Step 3: Cross multiply
1,351,539,979,079.60x = 1,865,285,066,182.20 × 802,833,451,888.35 - Step 4: Simplify right side
1,351,539,979,079.60x = 1,497,513,248,438,844,905,226,240 - Step 5: Solve for x
x = 1,497,513,248,438,844,905,226,240/1,351,539,979,079.60 - Step 6: Final answer
x = 1,108,005,143,479.85
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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.