Home / 876,636,748.20-1,314,955,122.30-543,742,105.80

Finding the Fourth Proportional to 876,636,748.20, 1,314,955,122.30 and 543,742,105.80

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Solution

The fourth proportional to 876,636,748.20, 1,314,955,122.30 and 543,742,105.80 is: 815,613,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,636,748.20 : 1,314,955,122.30 = 543,742,105.80 : x
  2. Step 2: Convert to fraction form
    876,636,748.20/1,314,955,122.30 = 543,742,105.80/x
  3. Step 3: Cross multiply
    876,636,748.20x = 1,314,955,122.30 × 543,742,105.80
  4. Step 4: Simplify right side
    876,636,748.20x = 714,996,467,231,898,496
  5. Step 5: Solve for x
    x = 714,996,467,231,898,496/876,636,748.20
  6. Step 6: Final answer
    x = 815,613,158.70

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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.