Finding the Fourth Proportional to 12,929,946.84, 19,395,017.28 and 5,739,547.68
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Solution
The fourth proportional to 12,929,946.84, 19,395,017.28 and 5,739,547.68 is: 8,609,364.59
Step by Step Solution
- Step 1: Write the proportion equation
12,929,946.84 : 19,395,017.28 = 5,739,547.68 : x - Step 2: Convert to fraction form
12,929,946.84/19,395,017.28 = 5,739,547.68/x - Step 3: Cross multiply
12,929,946.84x = 19,395,017.28 × 5,739,547.68 - Step 4: Simplify right side
12,929,946.84x = 111,318,626,432,983.91 - Step 5: Solve for x
x = 111,318,626,432,983.91/12,929,946.84 - Step 6: Final answer
x = 8,609,364.59
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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.