Finding the Fourth Proportional to 7,768,897,130.10, 11,653,345,695.15 and 7,639,902,621.30
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Solution
The fourth proportional to 7,768,897,130.10, 11,653,345,695.15 and 7,639,902,621.30 is: 11,459,853,931.95
Step by Step Solution
- Step 1: Write the proportion equation
7,768,897,130.10 : 11,653,345,695.15 = 7,639,902,621.30 : x - Step 2: Convert to fraction form
7,768,897,130.10/11,653,345,695.15 = 7,639,902,621.30/x - Step 3: Cross multiply
7,768,897,130.10x = 11,653,345,695.15 × 7,639,902,621.30 - Step 4: Simplify right side
7,768,897,130.10x = 89,030,426,323,291,553,792 - Step 5: Solve for x
x = 89,030,426,323,291,553,792/7,768,897,130.10 - Step 6: Final answer
x = 11,459,853,931.95
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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.