Home / 528,119,153.60-792,178,730.40-505,727,772.80

Finding the Fourth Proportional to 528,119,153.60, 792,178,730.40 and 505,727,772.80

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Solution

The fourth proportional to 528,119,153.60, 792,178,730.40 and 505,727,772.80 is: 758,591,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,119,153.60 : 792,178,730.40 = 505,727,772.80 : x
  2. Step 2: Convert to fraction form
    528,119,153.60/792,178,730.40 = 505,727,772.80/x
  3. Step 3: Cross multiply
    528,119,153.60x = 792,178,730.40 × 505,727,772.80
  4. Step 4: Simplify right side
    528,119,153.60x = 400,626,784,984,723,648
  5. Step 5: Solve for x
    x = 400,626,784,984,723,648/528,119,153.60
  6. Step 6: Final answer
    x = 758,591,659.20

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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.