Home / 31,347,133.60-47,020,700.40-21,143,466.40

Finding the Fourth Proportional to 31,347,133.60, 47,020,700.40 and 21,143,466.40

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Solution

The fourth proportional to 31,347,133.60, 47,020,700.40 and 21,143,466.40 is: 31,715,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347,133.60 : 47,020,700.40 = 21,143,466.40 : x
  2. Step 2: Convert to fraction form
    31,347,133.60/47,020,700.40 = 21,143,466.40/x
  3. Step 3: Cross multiply
    31,347,133.60x = 47,020,700.40 × 21,143,466.40
  4. Step 4: Simplify right side
    31,347,133.60x = 994,180,599,011,866.50
  5. Step 5: Solve for x
    x = 994,180,599,011,866.50/31,347,133.60
  6. Step 6: Final answer
    x = 31,715,199.60

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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.