Finding the Fourth Proportional to 129,791,141,263.92, 178,695,495,931.68 and 101,208,118,519.92
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Solution
The fourth proportional to 129,791,141,263.92, 178,695,495,931.68 and 101,208,118,519.92 is: 139,342,598,848.52
Step by Step Solution
- Step 1: Write the proportion equation
129,791,141,263.92 : 178,695,495,931.68 = 101,208,118,519.92 : x - Step 2: Convert to fraction form
129,791,141,263.92/178,695,495,931.68 = 101,208,118,519.92/x - Step 3: Cross multiply
129,791,141,263.92x = 178,695,495,931.68 × 101,208,118,519.92 - Step 4: Simplify right side
129,791,141,263.92x = 18,085,434,931,229,350,690,816 - Step 5: Solve for x
x = 18,085,434,931,229,350,690,816/129,791,141,263.92 - Step 6: Final answer
x = 139,342,598,848.52
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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.