Finding the Fourth Proportional to 939,259,041.36, 1,408,405,781.76 and 496,839,641.28
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Solution
The fourth proportional to 939,259,041.36, 1,408,405,781.76 and 496,839,641.28 is: 745,004,085.75
Step by Step Solution
- Step 1: Write the proportion equation
939,259,041.36 : 1,408,405,781.76 = 496,839,641.28 : x - Step 2: Convert to fraction form
939,259,041.36/1,408,405,781.76 = 496,839,641.28/x - Step 3: Cross multiply
939,259,041.36x = 1,408,405,781.76 × 496,839,641.28 - Step 4: Simplify right side
939,259,041.36x = 699,751,823,386,316,288 - Step 5: Solve for x
x = 699,751,823,386,316,288/939,259,041.36 - Step 6: Final answer
x = 745,004,085.75
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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.