Home / 140,121,921.60-210,202,970.40-43,085,779.20

Finding the Fourth Proportional to 140,121,921.60, 210,202,970.40 and 43,085,779.20

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Solution

The fourth proportional to 140,121,921.60, 210,202,970.40 and 43,085,779.20 is: 64,634,845.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,121,921.60 : 210,202,970.40 = 43,085,779.20 : x
  2. Step 2: Convert to fraction form
    140,121,921.60/210,202,970.40 = 43,085,779.20/x
  3. Step 3: Cross multiply
    140,121,921.60x = 210,202,970.40 × 43,085,779.20
  4. Step 4: Simplify right side
    140,121,921.60x = 9,056,758,769,838,536
  5. Step 5: Solve for x
    x = 9,056,758,769,838,536/140,121,921.60
  6. Step 6: Final answer
    x = 64,634,845.61

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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.