Home / 384,779,693.19-530,981,751-208,563,905.15

Finding the Fourth Proportional to 384,779,693.19, 530,981,751 and 208,563,905.15

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Solution

The fourth proportional to 384,779,693.19, 530,981,751 and 208,563,905.15 is: 287,810,478.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,693.19 : 530,981,751 = 208,563,905.15 : x
  2. Step 2: Convert to fraction form
    384,779,693.19/530,981,751 = 208,563,905.15/x
  3. Step 3: Cross multiply
    384,779,693.19x = 530,981,751 × 208,563,905.15
  4. Step 4: Simplify right side
    384,779,693.19x = 110,743,627,551,281,200
  5. Step 5: Solve for x
    x = 110,743,627,551,281,200/384,779,693.19
  6. Step 6: Final answer
    x = 287,810,478.34

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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.