Home / 639,763,473-959,645,209.68-155,089,281

Finding the Fourth Proportional to 639,763,473, 959,645,209.68 and 155,089,281

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Solution

The fourth proportional to 639,763,473, 959,645,209.68 and 155,089,281 is: 232,633,921.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,763,473 : 959,645,209.68 = 155,089,281 : x
  2. Step 2: Convert to fraction form
    639,763,473/959,645,209.68 = 155,089,281/x
  3. Step 3: Cross multiply
    639,763,473x = 959,645,209.68 × 155,089,281
  4. Step 4: Simplify right side
    639,763,473x = 148,830,685,584,365,440
  5. Step 5: Solve for x
    x = 148,830,685,584,365,440/639,763,473
  6. Step 6: Final answer
    x = 232,633,921.54

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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.