Finding the Fourth Proportional to 840,565,915,695.90, 1,159,982,082,291.40 and 455,190,926,165.19
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Solution
The fourth proportional to 840,565,915,695.90, 1,159,982,082,291.40 and 455,190,926,165.19 is: 628,164,083,879.26
Step by Step Solution
- Step 1: Write the proportion equation
840,565,915,695.90 : 1,159,982,082,291.40 = 455,190,926,165.19 : x - Step 2: Convert to fraction form
840,565,915,695.90/1,159,982,082,291.40 = 455,190,926,165.19/x - Step 3: Cross multiply
840,565,915,695.90x = 1,159,982,082,291.40 × 455,190,926,165.19 - Step 4: Simplify right side
840,565,915,695.90x = 528,013,318,373,247,947,898,880 - Step 5: Solve for x
x = 528,013,318,373,247,947,898,880/840,565,915,695.90 - Step 6: Final answer
x = 628,164,083,879.26
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Double scale
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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.