Finding the Fourth Proportional to 90,745,616,398.36, 125,239,931,808.99 and 51,647,670,489.71
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Solution
The fourth proportional to 90,745,616,398.36, 125,239,931,808.99 and 51,647,670,489.71 is: 71,280,035,190.13
Step by Step Solution
- Step 1: Write the proportion equation
90,745,616,398.36 : 125,239,931,808.99 = 51,647,670,489.71 : x - Step 2: Convert to fraction form
90,745,616,398.36/125,239,931,808.99 = 51,647,670,489.71/x - Step 3: Cross multiply
90,745,616,398.36x = 125,239,931,808.99 × 51,647,670,489.71 - Step 4: Simplify right side
90,745,616,398.36x = 6,468,350,730,224,465,346,560 - Step 5: Solve for x
x = 6,468,350,730,224,465,346,560/90,745,616,398.36 - Step 6: Final answer
x = 71,280,035,190.13
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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.