Finding the Fourth Proportional to 93,136,632.42, 128,535,345.83 and 53,988,515.94
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Solution
The fourth proportional to 93,136,632.42, 128,535,345.83 and 53,988,515.94 is: 74,508,089.75
Step by Step Solution
- Step 1: Write the proportion equation
93,136,632.42 : 128,535,345.83 = 53,988,515.94 : x - Step 2: Convert to fraction form
93,136,632.42/128,535,345.83 = 53,988,515.94/x - Step 3: Cross multiply
93,136,632.42x = 128,535,345.83 × 53,988,515.94 - Step 4: Simplify right side
93,136,632.42x = 6,939,432,566,926,425 - Step 5: Solve for x
x = 6,939,432,566,926,425/93,136,632.42 - Step 6: Final answer
x = 74,508,089.75
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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.