Finding the Fourth Proportional to 1,455,381,540.74, 2,008,426,526.21 and 828,908,261.12
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Solution
The fourth proportional to 1,455,381,540.74, 2,008,426,526.21 and 828,908,261.12 is: 1,143,893,400.34
Step by Step Solution
- Step 1: Write the proportion equation
1,455,381,540.74 : 2,008,426,526.21 = 828,908,261.12 : x - Step 2: Convert to fraction form
1,455,381,540.74/2,008,426,526.21 = 828,908,261.12/x - Step 3: Cross multiply
1,455,381,540.74x = 2,008,426,526.21 × 828,908,261.12 - Step 4: Simplify right side
1,455,381,540.74x = 1,664,801,339,435,106,560 - Step 5: Solve for x
x = 1,664,801,339,435,106,560/1,455,381,540.74 - Step 6: Final answer
x = 1,143,893,400.34
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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.