Home / 190,727,999.80-286,091,999.70-47,120,831.80

Finding the Fourth Proportional to 190,727,999.80, 286,091,999.70 and 47,120,831.80

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Solution

The fourth proportional to 190,727,999.80, 286,091,999.70 and 47,120,831.80 is: 70,681,247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,727,999.80 : 286,091,999.70 = 47,120,831.80 : x
  2. Step 2: Convert to fraction form
    190,727,999.80/286,091,999.70 = 47,120,831.80/x
  3. Step 3: Cross multiply
    190,727,999.80x = 286,091,999.70 × 47,120,831.80
  4. Step 4: Simplify right side
    190,727,999.80x = 13,480,892,997,189,350
  5. Step 5: Solve for x
    x = 13,480,892,997,189,350/190,727,999.80
  6. Step 6: Final answer
    x = 70,681,247.70

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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.