Home / 219,779,856.40-329,669,784.60-90,480,261.10

Finding the Fourth Proportional to 219,779,856.40, 329,669,784.60 and 90,480,261.10

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Solution

The fourth proportional to 219,779,856.40, 329,669,784.60 and 90,480,261.10 is: 135,720,391.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,779,856.40 : 329,669,784.60 = 90,480,261.10 : x
  2. Step 2: Convert to fraction form
    219,779,856.40/329,669,784.60 = 90,480,261.10/x
  3. Step 3: Cross multiply
    219,779,856.40x = 329,669,784.60 × 90,480,261.10
  4. Step 4: Simplify right side
    219,779,856.40x = 29,828,608,187,388,760
  5. Step 5: Solve for x
    x = 29,828,608,187,388,760/219,779,856.40
  6. Step 6: Final answer
    x = 135,720,391.65

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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.