Finding the Fourth Proportional to 1,122,339,794.60, 1,683,509,691.90 and 510,119,762.60
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Solution
The fourth proportional to 1,122,339,794.60, 1,683,509,691.90 and 510,119,762.60 is: 765,179,643.90
Step by Step Solution
- Step 1: Write the proportion equation
1,122,339,794.60 : 1,683,509,691.90 = 510,119,762.60 : x - Step 2: Convert to fraction form
1,122,339,794.60/1,683,509,691.90 = 510,119,762.60/x - Step 3: Cross multiply
1,122,339,794.60x = 1,683,509,691.90 × 510,119,762.60 - Step 4: Simplify right side
1,122,339,794.60x = 858,791,564,366,827,264 - Step 5: Solve for x
x = 858,791,564,366,827,264/1,122,339,794.60 - Step 6: Final answer
x = 765,179,643.90
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Double scale
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Similar ratio
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.