Finding the Fourth Proportional to 617,549,989.80, 926,324,984.70 and 531,456,547.80
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Solution
The fourth proportional to 617,549,989.80, 926,324,984.70 and 531,456,547.80 is: 797,184,821.70
Step by Step Solution
- Step 1: Write the proportion equation
617,549,989.80 : 926,324,984.70 = 531,456,547.80 : x - Step 2: Convert to fraction form
617,549,989.80/926,324,984.70 = 531,456,547.80/x - Step 3: Cross multiply
617,549,989.80x = 926,324,984.70 × 531,456,547.80 - Step 4: Simplify right side
617,549,989.80x = 492,301,478,509,549,824 - Step 5: Solve for x
x = 492,301,478,509,549,824/617,549,989.80 - Step 6: Final answer
x = 797,184,821.70
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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.