Home / 420,712,712.02-631,100,788.71-125,584,518.48

Finding the Fourth Proportional to 420,712,712.02, 631,100,788.71 and 125,584,518.48

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Solution

The fourth proportional to 420,712,712.02, 631,100,788.71 and 125,584,518.48 is: 188,386,246.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,712,712.02 : 631,100,788.71 = 125,584,518.48 : x
  2. Step 2: Convert to fraction form
    420,712,712.02/631,100,788.71 = 125,584,518.48/x
  3. Step 3: Cross multiply
    420,712,712.02x = 631,100,788.71 × 125,584,518.48
  4. Step 4: Simplify right side
    420,712,712.02x = 79,256,488,662,493,584
  5. Step 5: Solve for x
    x = 79,256,488,662,493,584/420,712,712.02
  6. Step 6: Final answer
    x = 188,386,246.48

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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.