Finding the Fourth Proportional to 909,331,919.88, 1,254,875,689.16 and 507,441,454.80
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Solution
The fourth proportional to 909,331,919.88, 1,254,875,689.16 and 507,441,454.80 is: 700,267,890.50
Step by Step Solution
- Step 1: Write the proportion equation
909,331,919.88 : 1,254,875,689.16 = 507,441,454.80 : x - Step 2: Convert to fraction form
909,331,919.88/1,254,875,689.16 = 507,441,454.80/x - Step 3: Cross multiply
909,331,919.88x = 1,254,875,689.16 × 507,441,454.80 - Step 4: Simplify right side
909,331,919.88x = 636,775,945,297,965,824 - Step 5: Solve for x
x = 636,775,945,297,965,824/909,331,919.88 - Step 6: Final answer
x = 700,267,890.50
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1.5x scale
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.