Home / 280,854,117.60-421,113,214.80-144,805,221.60

Finding the Fourth Proportional to 280,854,117.60, 421,113,214.80 and 144,805,221.60

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Solution

The fourth proportional to 280,854,117.60, 421,113,214.80 and 144,805,221.60 is: 217,121,233.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,854,117.60 : 421,113,214.80 = 144,805,221.60 : x
  2. Step 2: Convert to fraction form
    280,854,117.60/421,113,214.80 = 144,805,221.60/x
  3. Step 3: Cross multiply
    280,854,117.60x = 421,113,214.80 × 144,805,221.60
  4. Step 4: Simplify right side
    280,854,117.60x = 60,979,392,387,802,400
  5. Step 5: Solve for x
    x = 60,979,392,387,802,400/280,854,117.60
  6. Step 6: Final answer
    x = 217,121,233.29

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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.