Finding the Fourth Proportional to 1,567,417,441.76, 2,162,549,112.99 and 889,122,602.84
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Solution
The fourth proportional to 1,567,417,441.76, 2,162,549,112.99 and 889,122,602.84 is: 1,226,712,964.19
Step by Step Solution
- Step 1: Write the proportion equation
1,567,417,441.76 : 2,162,549,112.99 = 889,122,602.84 : x - Step 2: Convert to fraction form
1,567,417,441.76/2,162,549,112.99 = 889,122,602.84/x - Step 3: Cross multiply
1,567,417,441.76x = 2,162,549,112.99 × 889,122,602.84 - Step 4: Simplify right side
1,567,417,441.76x = 1,922,771,296,111,001,856 - Step 5: Solve for x
x = 1,922,771,296,111,001,856/1,567,417,441.76 - Step 6: Final answer
x = 1,226,712,964.19
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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.