Finding the Fourth Proportional to 138,440,404.80, 207,660,607.20 and 57,650,875.20
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Solution
The fourth proportional to 138,440,404.80, 207,660,607.20 and 57,650,875.20 is: 86,476,312.80
Step by Step Solution
- Step 1: Write the proportion equation
138,440,404.80 : 207,660,607.20 = 57,650,875.20 : x - Step 2: Convert to fraction form
138,440,404.80/207,660,607.20 = 57,650,875.20/x - Step 3: Cross multiply
138,440,404.80x = 207,660,607.20 × 57,650,875.20 - Step 4: Simplify right side
138,440,404.80x = 11,971,815,749,643,422 - Step 5: Solve for x
x = 11,971,815,749,643,422/138,440,404.80 - Step 6: Final answer
x = 86,476,312.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.