Home / 157,470,709.60-236,206,064.40-138,763,986.40

Finding the Fourth Proportional to 157,470,709.60, 236,206,064.40 and 138,763,986.40

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Solution

The fourth proportional to 157,470,709.60, 236,206,064.40 and 138,763,986.40 is: 208,145,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,470,709.60 : 236,206,064.40 = 138,763,986.40 : x
  2. Step 2: Convert to fraction form
    157,470,709.60/236,206,064.40 = 138,763,986.40/x
  3. Step 3: Cross multiply
    157,470,709.60x = 236,206,064.40 × 138,763,986.40
  4. Step 4: Simplify right side
    157,470,709.60x = 32,776,895,107,999,128
  5. Step 5: Solve for x
    x = 32,776,895,107,999,128/157,470,709.60
  6. Step 6: Final answer
    x = 208,145,979.60

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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.