Home / 543,021,878.40-814,532,817.60-197,986,761.60

Finding the Fourth Proportional to 543,021,878.40, 814,532,817.60 and 197,986,761.60

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Solution

The fourth proportional to 543,021,878.40, 814,532,817.60 and 197,986,761.60 is: 296,980,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,021,878.40 : 814,532,817.60 = 197,986,761.60 : x
  2. Step 2: Convert to fraction form
    543,021,878.40/814,532,817.60 = 197,986,761.60/x
  3. Step 3: Cross multiply
    543,021,878.40x = 814,532,817.60 × 197,986,761.60
  4. Step 4: Simplify right side
    543,021,878.40x = 161,266,714,773,547,488
  5. Step 5: Solve for x
    x = 161,266,714,773,547,488/543,021,878.40
  6. Step 6: Final answer
    x = 296,980,142.40

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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.