Finding the Fourth Proportional to 747,159,424.10, 1,120,739,136.15 and 402,785,656.10
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Solution
The fourth proportional to 747,159,424.10, 1,120,739,136.15 and 402,785,656.10 is: 604,178,484.15
Step by Step Solution
- Step 1: Write the proportion equation
747,159,424.10 : 1,120,739,136.15 = 402,785,656.10 : x - Step 2: Convert to fraction form
747,159,424.10/1,120,739,136.15 = 402,785,656.10/x - Step 3: Cross multiply
747,159,424.10x = 1,120,739,136.15 × 402,785,656.10 - Step 4: Simplify right side
747,159,424.10x = 451,417,648,271,125,056 - Step 5: Solve for x
x = 451,417,648,271,125,056/747,159,424.10 - Step 6: Final answer
x = 604,178,484.15
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Similar ratio
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1.5x scale
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.