Finding the Fourth Proportional to 425,683,428,742.48, 638,526,799,707.21 and 102,985,724,499.08
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Solution
The fourth proportional to 425,683,428,742.48, 638,526,799,707.21 and 102,985,724,499.08 is: 154,478,987,528.80
Step by Step Solution
- Step 1: Write the proportion equation
425,683,428,742.48 : 638,526,799,707.21 = 102,985,724,499.08 : x - Step 2: Convert to fraction form
425,683,428,742.48/638,526,799,707.21 = 102,985,724,499.08/x - Step 3: Cross multiply
425,683,428,742.48x = 638,526,799,707.21 × 102,985,724,499.08 - Step 4: Simplify right side
425,683,428,742.48x = 65,759,145,079,925,960,081,408 - Step 5: Solve for x
x = 65,759,145,079,925,960,081,408/425,683,428,742.48 - Step 6: Final answer
x = 154,478,987,528.80
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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.