Finding the Fourth Proportional to 660,195,136.20, 989,442,398.70 and 506,077,246.20
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Solution
The fourth proportional to 660,195,136.20, 989,442,398.70 and 506,077,246.20 is: 758,464,061.53
Step by Step Solution
- Step 1: Write the proportion equation
660,195,136.20 : 989,442,398.70 = 506,077,246.20 : x - Step 2: Convert to fraction form
660,195,136.20/989,442,398.70 = 506,077,246.20/x - Step 3: Cross multiply
660,195,136.20x = 989,442,398.70 × 506,077,246.20 - Step 4: Simplify right side
660,195,136.20x = 500,734,284,407,618,496 - Step 5: Solve for x
x = 500,734,284,407,618,496/660,195,136.20 - Step 6: Final answer
x = 758,464,061.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.