Home / 484,922,428.60-727,383,642.90-139,887,311.80

Finding the Fourth Proportional to 484,922,428.60, 727,383,642.90 and 139,887,311.80

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Solution

The fourth proportional to 484,922,428.60, 727,383,642.90 and 139,887,311.80 is: 209,830,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,922,428.60 : 727,383,642.90 = 139,887,311.80 : x
  2. Step 2: Convert to fraction form
    484,922,428.60/727,383,642.90 = 139,887,311.80/x
  3. Step 3: Cross multiply
    484,922,428.60x = 727,383,642.90 × 139,887,311.80
  4. Step 4: Simplify right side
    484,922,428.60x = 101,751,742,452,572,160
  5. Step 5: Solve for x
    x = 101,751,742,452,572,160/484,922,428.60
  6. Step 6: Final answer
    x = 209,830,967.70

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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.