Home / 528,150,654.40-791,470,154.40-388,889,492.80

Finding the Fourth Proportional to 528,150,654.40, 791,470,154.40 and 388,889,492.80

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Solution

The fourth proportional to 528,150,654.40, 791,470,154.40 and 388,889,492.80 is: 582,777,706.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,150,654.40 : 791,470,154.40 = 388,889,492.80 : x
  2. Step 2: Convert to fraction form
    528,150,654.40/791,470,154.40 = 388,889,492.80/x
  3. Step 3: Cross multiply
    528,150,654.40x = 791,470,154.40 × 388,889,492.80
  4. Step 4: Simplify right side
    528,150,654.40x = 307,794,426,910,953,664
  5. Step 5: Solve for x
    x = 307,794,426,910,953,664/528,150,654.40
  6. Step 6: Final answer
    x = 582,777,706.22

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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.