Finding the Fourth Proportional to 859,959,142.44, 1,186,725,015.85 and 497,868,374.87
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Solution
The fourth proportional to 859,959,142.44, 1,186,725,015.85 and 497,868,374.87 is: 687,047,588.55
Step by Step Solution
- Step 1: Write the proportion equation
859,959,142.44 : 1,186,725,015.85 = 497,868,374.87 : x - Step 2: Convert to fraction form
859,959,142.44/1,186,725,015.85 = 497,868,374.87/x - Step 3: Cross multiply
859,959,142.44x = 1,186,725,015.85 × 497,868,374.87 - Step 4: Simplify right side
859,959,142.44x = 590,832,855,058,984,960 - Step 5: Solve for x
x = 590,832,855,058,984,960/859,959,142.44 - Step 6: Final answer
x = 687,047,588.55
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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.