Finding the Fourth Proportional to 556,683,798.96, 769,888,349.64 and 486,948,125.52
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Solution
The fourth proportional to 556,683,798.96, 769,888,349.64 and 486,948,125.52 is: 673,444,582.75
Step by Step Solution
- Step 1: Write the proportion equation
556,683,798.96 : 769,888,349.64 = 486,948,125.52 : x - Step 2: Convert to fraction form
556,683,798.96/769,888,349.64 = 486,948,125.52/x - Step 3: Cross multiply
556,683,798.96x = 769,888,349.64 × 486,948,125.52 - Step 4: Simplify right side
556,683,798.96x = 374,895,688,716,884,352 - Step 5: Solve for x
x = 374,895,688,716,884,352/556,683,798.96 - Step 6: Final answer
x = 673,444,582.75
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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.