Finding the Fourth Proportional to 709,170,580.08, 978,916,551.16 and 426,926,139.68
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Solution
The fourth proportional to 709,170,580.08, 978,916,551.16 and 426,926,139.68 is: 589,315,287.46
Step by Step Solution
- Step 1: Write the proportion equation
709,170,580.08 : 978,916,551.16 = 426,926,139.68 : x - Step 2: Convert to fraction form
709,170,580.08/978,916,551.16 = 426,926,139.68/x - Step 3: Cross multiply
709,170,580.08x = 978,916,551.16 × 426,926,139.68 - Step 4: Simplify right side
709,170,580.08x = 417,925,064,255,598,016 - Step 5: Solve for x
x = 417,925,064,255,598,016/709,170,580.08 - Step 6: Final answer
x = 589,315,287.46
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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.