Finding the Fourth Proportional to 586,299,430.20, 879,386,159.70 and 155,477,926.20
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Solution
The fourth proportional to 586,299,430.20, 879,386,159.70 and 155,477,926.20 is: 233,200,186.45
Step by Step Solution
- Step 1: Write the proportion equation
586,299,430.20 : 879,386,159.70 = 155,477,926.20 : x - Step 2: Convert to fraction form
586,299,430.20/879,386,159.70 = 155,477,926.20/x - Step 3: Cross multiply
586,299,430.20x = 879,386,159.70 × 155,477,926.20 - Step 4: Simplify right side
586,299,430.20x = 136,725,136,439,138,016 - Step 5: Solve for x
x = 136,725,136,439,138,016/586,299,430.20 - Step 6: Final answer
x = 233,200,186.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.