Home / 528,408,048.60-792,612,072.90-392,359,152.60

Finding the Fourth Proportional to 528,408,048.60, 792,612,072.90 and 392,359,152.60

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Solution

The fourth proportional to 528,408,048.60, 792,612,072.90 and 392,359,152.60 is: 588,538,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,408,048.60 : 792,612,072.90 = 392,359,152.60 : x
  2. Step 2: Convert to fraction form
    528,408,048.60/792,612,072.90 = 392,359,152.60/x
  3. Step 3: Cross multiply
    528,408,048.60x = 792,612,072.90 × 392,359,152.60
  4. Step 4: Simplify right side
    528,408,048.60x = 310,988,601,263,573,440
  5. Step 5: Solve for x
    x = 310,988,601,263,573,440/528,408,048.60
  6. Step 6: Final answer
    x = 588,538,728.90

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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.