Finding the Fourth Proportional to 1,319,055,028.41, 1,978,646,177.36 and 433,720,787.19
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Solution
The fourth proportional to 1,319,055,028.41, 1,978,646,177.36 and 433,720,787.19 is: 650,602,104.65
Step by Step Solution
- Step 1: Write the proportion equation
1,319,055,028.41 : 1,978,646,177.36 = 433,720,787.19 : x - Step 2: Convert to fraction form
1,319,055,028.41/1,978,646,177.36 = 433,720,787.19/x - Step 3: Cross multiply
1,319,055,028.41x = 1,978,646,177.36 × 433,720,787.19 - Step 4: Simplify right side
1,319,055,028.41x = 858,179,977,624,193,408 - Step 5: Solve for x
x = 858,179,977,624,193,408/1,319,055,028.41 - Step 6: Final answer
x = 650,602,104.65
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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.