Finding the Fourth Proportional to 7,948,314,585.90, 11,922,471,878.85 and 2,713,833,312.30
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Solution
The fourth proportional to 7,948,314,585.90, 11,922,471,878.85 and 2,713,833,312.30 is: 4,070,749,968.45
Step by Step Solution
- Step 1: Write the proportion equation
7,948,314,585.90 : 11,922,471,878.85 = 2,713,833,312.30 : x - Step 2: Convert to fraction form
7,948,314,585.90/11,922,471,878.85 = 2,713,833,312.30/x - Step 3: Cross multiply
7,948,314,585.90x = 11,922,471,878.85 × 2,713,833,312.30 - Step 4: Simplify right side
7,948,314,585.90x = 32,355,601,349,783,101,440 - Step 5: Solve for x
x = 32,355,601,349,783,101,440/7,948,314,585.90 - Step 6: Final answer
x = 4,070,749,968.45
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Double scale
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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.