Home / 146,837,761.60-220,256,642.40-78,813,313.60

Finding the Fourth Proportional to 146,837,761.60, 220,256,642.40 and 78,813,313.60

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Solution

The fourth proportional to 146,837,761.60, 220,256,642.40 and 78,813,313.60 is: 118,219,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,837,761.60 : 220,256,642.40 = 78,813,313.60 : x
  2. Step 2: Convert to fraction form
    146,837,761.60/220,256,642.40 = 78,813,313.60/x
  3. Step 3: Cross multiply
    146,837,761.60x = 220,256,642.40 × 78,813,313.60
  4. Step 4: Simplify right side
    146,837,761.60x = 17,359,155,829,954,256
  5. Step 5: Solve for x
    x = 17,359,155,829,954,256/146,837,761.60
  6. Step 6: Final answer
    x = 118,219,970.40

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1.5x scale

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.