Finding the Fourth Proportional to 72,551,805.84, 100,125,703.62 and 54,637,963.74
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Solution
The fourth proportional to 72,551,805.84, 100,125,703.62 and 54,637,963.74 is: 75,403,561.64
Step by Step Solution
- Step 1: Write the proportion equation
72,551,805.84 : 100,125,703.62 = 54,637,963.74 : x - Step 2: Convert to fraction form
72,551,805.84/100,125,703.62 = 54,637,963.74/x - Step 3: Cross multiply
72,551,805.84x = 100,125,703.62 × 54,637,963.74 - Step 4: Simplify right side
72,551,805.84x = 5,470,664,563,831,547 - Step 5: Solve for x
x = 5,470,664,563,831,547/72,551,805.84 - Step 6: Final answer
x = 75,403,561.64
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.