Home / 528,379,621.20-792,569,431.80-140,201,701.20

Finding the Fourth Proportional to 528,379,621.20, 792,569,431.80 and 140,201,701.20

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Solution

The fourth proportional to 528,379,621.20, 792,569,431.80 and 140,201,701.20 is: 210,302,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,379,621.20 : 792,569,431.80 = 140,201,701.20 : x
  2. Step 2: Convert to fraction form
    528,379,621.20/792,569,431.80 = 140,201,701.20/x
  3. Step 3: Cross multiply
    528,379,621.20x = 792,569,431.80 × 140,201,701.20
  4. Step 4: Simplify right side
    528,379,621.20x = 111,119,582,657,477,360
  5. Step 5: Solve for x
    x = 111,119,582,657,477,360/528,379,621.20
  6. Step 6: Final answer
    x = 210,302,551.80

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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.