Finding the Fourth Proportional to 1,014,832,801.20, 1,522,249,201.80 and 498,272,149.20
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Solution
The fourth proportional to 1,014,832,801.20, 1,522,249,201.80 and 498,272,149.20 is: 747,408,223.80
Step by Step Solution
- Step 1: Write the proportion equation
1,014,832,801.20 : 1,522,249,201.80 = 498,272,149.20 : x - Step 2: Convert to fraction form
1,014,832,801.20/1,522,249,201.80 = 498,272,149.20/x - Step 3: Cross multiply
1,014,832,801.20x = 1,522,249,201.80 × 498,272,149.20 - Step 4: Simplify right side
1,014,832,801.20x = 758,494,381,398,870,528 - Step 5: Solve for x
x = 758,494,381,398,870,528/1,014,832,801.20 - Step 6: Final answer
x = 747,408,223.80
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Double scale
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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.