Finding the Fourth Proportional to 68,984,838,287.20, 103,477,257,430.80 and 37,639,172,648.80
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Solution
The fourth proportional to 68,984,838,287.20, 103,477,257,430.80 and 37,639,172,648.80 is: 56,458,758,973.20
Step by Step Solution
- Step 1: Write the proportion equation
68,984,838,287.20 : 103,477,257,430.80 = 37,639,172,648.80 : x - Step 2: Convert to fraction form
68,984,838,287.20/103,477,257,430.80 = 37,639,172,648.80/x - Step 3: Cross multiply
68,984,838,287.20x = 103,477,257,430.80 × 37,639,172,648.80 - Step 4: Simplify right side
68,984,838,287.20x = 3,894,798,357,662,204,428,288 - Step 5: Solve for x
x = 3,894,798,357,662,204,428,288/68,984,838,287.20 - Step 6: Final answer
x = 56,458,758,973.20
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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.