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Finding the Fourth Proportional to 523,903,438.56, 784,220,312.32 and 385,884,889.28

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Solution

The fourth proportional to 523,903,438.56, 784,220,312.32 and 385,884,889.28 is: 577,623,176.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,903,438.56 : 784,220,312.32 = 385,884,889.28 : x
  2. Step 2: Convert to fraction form
    523,903,438.56/784,220,312.32 = 385,884,889.28/x
  3. Step 3: Cross multiply
    523,903,438.56x = 784,220,312.32 × 385,884,889.28
  4. Step 4: Simplify right side
    523,903,438.56x = 302,618,768,390,730,240
  5. Step 5: Solve for x
    x = 302,618,768,390,730,240/523,903,438.56
  6. Step 6: Final answer
    x = 577,623,176.56

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