Home / 31,903,777.60-47,855,666.40-19,117,700.80

Finding the Fourth Proportional to 31,903,777.60, 47,855,666.40 and 19,117,700.80

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Solution

The fourth proportional to 31,903,777.60, 47,855,666.40 and 19,117,700.80 is: 28,676,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,903,777.60 : 47,855,666.40 = 19,117,700.80 : x
  2. Step 2: Convert to fraction form
    31,903,777.60/47,855,666.40 = 19,117,700.80/x
  3. Step 3: Cross multiply
    31,903,777.60x = 47,855,666.40 × 19,117,700.80
  4. Step 4: Simplify right side
    31,903,777.60x = 914,890,311,819,813.12
  5. Step 5: Solve for x
    x = 914,890,311,819,813.12/31,903,777.60
  6. Step 6: Final answer
    x = 28,676,551.20

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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.