Home / 279,936,701.20-419,905,051.80-98,160,259.60

Finding the Fourth Proportional to 279,936,701.20, 419,905,051.80 and 98,160,259.60

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Solution

The fourth proportional to 279,936,701.20, 419,905,051.80 and 98,160,259.60 is: 147,240,389.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,701.20 : 419,905,051.80 = 98,160,259.60 : x
  2. Step 2: Convert to fraction form
    279,936,701.20/419,905,051.80 = 98,160,259.60/x
  3. Step 3: Cross multiply
    279,936,701.20x = 419,905,051.80 × 98,160,259.60
  4. Step 4: Simplify right side
    279,936,701.20x = 41,217,988,892,039,448
  5. Step 5: Solve for x
    x = 41,217,988,892,039,448/279,936,701.20
  6. Step 6: Final answer
    x = 147,240,389.40

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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.