Finding the Fourth Proportional to 1,109,603,671.68, 1,664,197,421.28 and 556,757,660.66
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Solution
The fourth proportional to 1,109,603,671.68, 1,664,197,421.28 and 556,757,660.66 is: 835,032,081.09
Step by Step Solution
- Step 1: Write the proportion equation
1,109,603,671.68 : 1,664,197,421.28 = 556,757,660.66 : x - Step 2: Convert to fraction form
1,109,603,671.68/1,664,197,421.28 = 556,757,660.66/x - Step 3: Cross multiply
1,109,603,671.68x = 1,664,197,421.28 × 556,757,660.66 - Step 4: Simplify right side
1,109,603,671.68x = 926,554,663,148,257,280 - Step 5: Solve for x
x = 926,554,663,148,257,280/1,109,603,671.68 - Step 6: Final answer
x = 835,032,081.09
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.