Home / 28,395,956,672.28-39,187,574,025.18-15,708,473,593.92

Finding the Fourth Proportional to 28,395,956,672.28, 39,187,574,025.18 and 15,708,473,593.92

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Solution

The fourth proportional to 28,395,956,672.28, 39,187,574,025.18 and 15,708,473,593.92 is: 21,678,331,844.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,395,956,672.28 : 39,187,574,025.18 = 15,708,473,593.92 : x
  2. Step 2: Convert to fraction form
    28,395,956,672.28/39,187,574,025.18 = 15,708,473,593.92/x
  3. Step 3: Cross multiply
    28,395,956,672.28x = 39,187,574,025.18 × 15,708,473,593.92
  4. Step 4: Simplify right side
    28,395,956,672.28x = 615,576,971,784,325,300,224
  5. Step 5: Solve for x
    x = 615,576,971,784,325,300,224/28,395,956,672.28
  6. Step 6: Final answer
    x = 21,678,331,844.52

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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.