Home / 121,949,225,515.68-168,294,472,986.42-73,127,994,549.72

Finding the Fourth Proportional to 121,949,225,515.68, 168,294,472,986.42 and 73,127,994,549.72

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Solution

The fourth proportional to 121,949,225,515.68, 168,294,472,986.42 and 73,127,994,549.72 is: 100,919,355,996.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,949,225,515.68 : 168,294,472,986.42 = 73,127,994,549.72 : x
  2. Step 2: Convert to fraction form
    121,949,225,515.68/168,294,472,986.42 = 73,127,994,549.72/x
  3. Step 3: Cross multiply
    121,949,225,515.68x = 168,294,472,986.42 × 73,127,994,549.72
  4. Step 4: Simplify right side
    121,949,225,515.68x = 12,307,037,303,298,922,119,168
  5. Step 5: Solve for x
    x = 12,307,037,303,298,922,119,168/121,949,225,515.68
  6. Step 6: Final answer
    x = 100,919,355,996.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.