Finding the Fourth Proportional to 1,422,278,184,070.30, 1,962,745,346,622.80 and 771,956,901,767.36
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Solution
The fourth proportional to 1,422,278,184,070.30, 1,962,745,346,622.80 and 771,956,901,767.36 is: 1,065,301,312,856.49
Step by Step Solution
- Step 1: Write the proportion equation
1,422,278,184,070.30 : 1,962,745,346,622.80 = 771,956,901,767.36 : x - Step 2: Convert to fraction form
1,422,278,184,070.30/1,962,745,346,622.80 = 771,956,901,767.36/x - Step 3: Cross multiply
1,422,278,184,070.30x = 1,962,745,346,622.80 × 771,956,901,767.36 - Step 4: Simplify right side
1,422,278,184,070.30x = 1,515,154,816,737,239,864,705,024 - Step 5: Solve for x
x = 1,515,154,816,737,239,864,705,024/1,422,278,184,070.30 - Step 6: Final answer
x = 1,065,301,312,856.49
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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.