Finding the Fourth Proportional to 1,029,742,060.32, 1,421,346,470.06 and 672,564,440.84
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Solution
The fourth proportional to 1,029,742,060.32, 1,421,346,470.06 and 672,564,440.84 is: 928,336,455.02
Step by Step Solution
- Step 1: Write the proportion equation
1,029,742,060.32 : 1,421,346,470.06 = 672,564,440.84 : x - Step 2: Convert to fraction form
1,029,742,060.32/1,421,346,470.06 = 672,564,440.84/x - Step 3: Cross multiply
1,029,742,060.32x = 1,421,346,470.06 × 672,564,440.84 - Step 4: Simplify right side
1,029,742,060.32x = 955,947,093,865,342,208 - Step 5: Solve for x
x = 955,947,093,865,342,208/1,029,742,060.32 - Step 6: Final answer
x = 928,336,455.02
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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.