Finding the Fourth Proportional to 772,937,316.90, 1,159,405,975.35 and 528,049,304.10
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Solution
The fourth proportional to 772,937,316.90, 1,159,405,975.35 and 528,049,304.10 is: 792,073,956.15
Step by Step Solution
- Step 1: Write the proportion equation
772,937,316.90 : 1,159,405,975.35 = 528,049,304.10 : x - Step 2: Convert to fraction form
772,937,316.90/1,159,405,975.35 = 528,049,304.10/x - Step 3: Cross multiply
772,937,316.90x = 1,159,405,975.35 × 528,049,304.10 - Step 4: Simplify right side
772,937,316.90x = 612,223,518,452,949,248 - Step 5: Solve for x
x = 612,223,518,452,949,248/772,937,316.90 - Step 6: Final answer
x = 792,073,956.15
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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.