Finding the Fourth Proportional to 22,660,059.79, 31,270,886.99 and 12,346,782.85
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Solution
The fourth proportional to 22,660,059.79, 31,270,886.99 and 12,346,782.85 is: 17,038,562.77
Step by Step Solution
- Step 1: Write the proportion equation
22,660,059.79 : 31,270,886.99 = 12,346,782.85 : x - Step 2: Convert to fraction form
22,660,059.79/31,270,886.99 = 12,346,782.85/x - Step 3: Cross multiply
22,660,059.79x = 31,270,886.99 × 12,346,782.85 - Step 4: Simplify right side
22,660,059.79x = 386,094,851,192,420.06 - Step 5: Solve for x
x = 386,094,851,192,420.06/22,660,059.79 - Step 6: Final answer
x = 17,038,562.77
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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.