Finding the Fourth Proportional to 84,106,209,403.51, 126,159,637,585.45 and 20,363,449,097.62
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Solution
The fourth proportional to 84,106,209,403.51, 126,159,637,585.45 and 20,363,449,097.62 is: 30,545,251,966.12
Step by Step Solution
- Step 1: Write the proportion equation
84,106,209,403.51 : 126,159,637,585.45 = 20,363,449,097.62 : x - Step 2: Convert to fraction form
84,106,209,403.51/126,159,637,585.45 = 20,363,449,097.62/x - Step 3: Cross multiply
84,106,209,403.51x = 126,159,637,585.45 × 20,363,449,097.62 - Step 4: Simplify right side
84,106,209,403.51x = 2,569,045,358,145,497,989,120 - Step 5: Solve for x
x = 2,569,045,358,145,497,989,120/84,106,209,403.51 - Step 6: Final answer
x = 30,545,251,966.12
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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.