Finding the Fourth Proportional to 709,170,576.08, 978,916,545.64 and 426,926,135.68
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Solution
The fourth proportional to 709,170,576.08, 978,916,545.64 and 426,926,135.68 is: 589,315,281.94
Step by Step Solution
- Step 1: Write the proportion equation
709,170,576.08 : 978,916,545.64 = 426,926,135.68 : x - Step 2: Convert to fraction form
709,170,576.08/978,916,545.64 = 426,926,135.68/x - Step 3: Cross multiply
709,170,576.08x = 978,916,545.64 × 426,926,135.68 - Step 4: Simplify right side
709,170,576.08x = 417,925,057,983,299,584 - Step 5: Solve for x
x = 417,925,057,983,299,584/709,170,576.08 - Step 6: Final answer
x = 589,315,281.94
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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.