Finding the Fourth Proportional to 442,578,840.92, 663,859,146.65 and 147,495,386.00
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Solution
The fourth proportional to 442,578,840.92, 663,859,146.65 and 147,495,386.00 is: 221,240,041.40
Step by Step Solution
- Step 1: Write the proportion equation
442,578,840.92 : 663,859,146.65 = 147,495,386.00 : x - Step 2: Convert to fraction form
442,578,840.92/663,859,146.65 = 147,495,386.00/x - Step 3: Cross multiply
442,578,840.92x = 663,859,146.65 × 147,495,386.00 - Step 4: Simplify right side
442,578,840.92x = 97,916,161,085,694,528 - Step 5: Solve for x
x = 97,916,161,085,694,528/442,578,840.92 - Step 6: Final answer
x = 221,240,041.40
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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.