Finding the Fourth Proportional to 872,963,869,574.76, 1,204,677,319,264.80 and 487,593,839,385.08
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Solution
The fourth proportional to 872,963,869,574.76, 1,204,677,319,264.80 and 487,593,839,385.08 is: 672,872,337,324.32
Step by Step Solution
- Step 1: Write the proportion equation
872,963,869,574.76 : 1,204,677,319,264.80 = 487,593,839,385.08 : x - Step 2: Convert to fraction form
872,963,869,574.76/1,204,677,319,264.80 = 487,593,839,385.08/x - Step 3: Cross multiply
872,963,869,574.76x = 1,204,677,319,264.80 × 487,593,839,385.08 - Step 4: Simplify right side
872,963,869,574.76x = 587,393,239,320,449,679,097,856 - Step 5: Solve for x
x = 587,393,239,320,449,679,097,856/872,963,869,574.76 - Step 6: Final answer
x = 672,872,337,324.32
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Double scale
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1.5x scale
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.