Home / 631,637,760.60-947,519,954.55-217,059,980.40

Finding the Fourth Proportional to 631,637,760.60, 947,519,954.55 and 217,059,980.40

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Solution

The fourth proportional to 631,637,760.60, 947,519,954.55 and 217,059,980.40 is: 325,611,728.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,637,760.60 : 947,519,954.55 = 217,059,980.40 : x
  2. Step 2: Convert to fraction form
    631,637,760.60/947,519,954.55 = 217,059,980.40/x
  3. Step 3: Cross multiply
    631,637,760.60x = 947,519,954.55 × 217,059,980.40
  4. Step 4: Simplify right side
    631,637,760.60x = 205,668,662,763,231,872
  5. Step 5: Solve for x
    x = 205,668,662,763,231,872/631,637,760.60
  6. Step 6: Final answer
    x = 325,611,728.10

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1.5x scale

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.