Home / 147,510,915.40-203,559,727.50-81,429,995.20

Finding the Fourth Proportional to 147,510,915.40, 203,559,727.50 and 81,429,995.20

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Solution

The fourth proportional to 147,510,915.40, 203,559,727.50 and 81,429,995.20 is: 112,370,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,510,915.40 : 203,559,727.50 = 81,429,995.20 : x
  2. Step 2: Convert to fraction form
    147,510,915.40/203,559,727.50 = 81,429,995.20/x
  3. Step 3: Cross multiply
    147,510,915.40x = 203,559,727.50 × 81,429,995.20
  4. Step 4: Simplify right side
    147,510,915.40x = 16,575,867,633,238,308
  5. Step 5: Solve for x
    x = 16,575,867,633,238,308/147,510,915.40
  6. Step 6: Final answer
    x = 112,370,447.90

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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.