Home / 193,643,009.91-267,220,517.20-105,535,258.90

Finding the Fourth Proportional to 193,643,009.91, 267,220,517.20 and 105,535,258.90

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Solution

The fourth proportional to 193,643,009.91, 267,220,517.20 and 105,535,258.90 is: 145,634,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,643,009.91 : 267,220,517.20 = 105,535,258.90 : x
  2. Step 2: Convert to fraction form
    193,643,009.91/267,220,517.20 = 105,535,258.90/x
  3. Step 3: Cross multiply
    193,643,009.91x = 267,220,517.20 × 105,535,258.90
  4. Step 4: Simplify right side
    193,643,009.91x = 28,201,186,465,162,012
  5. Step 5: Solve for x
    x = 28,201,186,465,162,012/193,643,009.91
  6. Step 6: Final answer
    x = 145,634,931.40

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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.