Home / 31,373,679.60-47,060,519.40-21,170,012.40

Finding the Fourth Proportional to 31,373,679.60, 47,060,519.40 and 21,170,012.40

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Solution

The fourth proportional to 31,373,679.60, 47,060,519.40 and 21,170,012.40 is: 31,755,018.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,373,679.60 : 47,060,519.40 = 21,170,012.40 : x
  2. Step 2: Convert to fraction form
    31,373,679.60/47,060,519.40 = 21,170,012.40/x
  3. Step 3: Cross multiply
    31,373,679.60x = 47,060,519.40 × 21,170,012.40
  4. Step 4: Simplify right side
    31,373,679.60x = 996,271,779,248,440.50
  5. Step 5: Solve for x
    x = 996,271,779,248,440.50/31,373,679.60
  6. Step 6: Final answer
    x = 31,755,018.60

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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.