Finding the Fourth Proportional to 1,292,693,257.93, 1,939,312,250.64 and 419,226,518.34
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Solution
The fourth proportional to 1,292,693,257.93, 1,939,312,250.64 and 419,226,518.34 is: 628,928,106.35
Step by Step Solution
- Step 1: Write the proportion equation
1,292,693,257.93 : 1,939,312,250.64 = 419,226,518.34 : x - Step 2: Convert to fraction form
1,292,693,257.93/1,939,312,250.64 = 419,226,518.34/x - Step 3: Cross multiply
1,292,693,257.93x = 1,939,312,250.64 × 419,226,518.34 - Step 4: Simplify right side
1,292,693,257.93x = 813,011,122,800,220,032 - Step 5: Solve for x
x = 813,011,122,800,220,032/1,292,693,257.93 - Step 6: Final answer
x = 628,928,106.35
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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.