Home / 399,450,695.64-551,258,984.13-223,238,685.81

Finding the Fourth Proportional to 399,450,695.64, 551,258,984.13 and 223,238,685.81

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Solution

The fourth proportional to 399,450,695.64, 551,258,984.13 and 223,238,685.81 is: 308,078,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,450,695.64 : 551,258,984.13 = 223,238,685.81 : x
  2. Step 2: Convert to fraction form
    399,450,695.64/551,258,984.13 = 223,238,685.81/x
  3. Step 3: Cross multiply
    399,450,695.64x = 551,258,984.13 × 223,238,685.81
  4. Step 4: Simplify right side
    399,450,695.64x = 123,062,331,158,136,848
  5. Step 5: Solve for x
    x = 123,062,331,158,136,848/399,450,695.64
  6. Step 6: Final answer
    x = 308,078,900.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.