Home / 21,004,567.70-31,506,851.55-8,220,823.70

Finding the Fourth Proportional to 21,004,567.70, 31,506,851.55 and 8,220,823.70

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Solution

The fourth proportional to 21,004,567.70, 31,506,851.55 and 8,220,823.70 is: 12,331,235.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,004,567.70 : 31,506,851.55 = 8,220,823.70 : x
  2. Step 2: Convert to fraction form
    21,004,567.70/31,506,851.55 = 8,220,823.70/x
  3. Step 3: Cross multiply
    21,004,567.70x = 31,506,851.55 × 8,220,823.70
  4. Step 4: Simplify right side
    21,004,567.70x = 259,012,271,934,621.75
  5. Step 5: Solve for x
    x = 259,012,271,934,621.75/21,004,567.70
  6. Step 6: Final answer
    x = 12,331,235.55

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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.