Finding the Fourth Proportional to 124,572,258.72, 171,909,153.23 and 68,817,697.20
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Solution
The fourth proportional to 124,572,258.72, 171,909,153.23 and 68,817,697.20 is: 94,968,110.67
Step by Step Solution
- Step 1: Write the proportion equation
124,572,258.72 : 171,909,153.23 = 68,817,697.20 : x - Step 2: Convert to fraction form
124,572,258.72/171,909,153.23 = 68,817,697.20/x - Step 3: Cross multiply
124,572,258.72x = 171,909,153.23 × 68,817,697.20 - Step 4: Simplify right side
124,572,258.72x = 11,830,392,052,546,454 - Step 5: Solve for x
x = 11,830,392,052,546,454/124,572,258.72 - Step 6: Final answer
x = 94,968,110.67
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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.