Home / 19,872,012.80-29,808,019.20-15,567,340.70

Finding the Fourth Proportional to 19,872,012.80, 29,808,019.20 and 15,567,340.70

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Solution

The fourth proportional to 19,872,012.80, 29,808,019.20 and 15,567,340.70 is: 23,351,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872,012.80 : 29,808,019.20 = 15,567,340.70 : x
  2. Step 2: Convert to fraction form
    19,872,012.80/29,808,019.20 = 15,567,340.70/x
  3. Step 3: Cross multiply
    19,872,012.80x = 29,808,019.20 × 15,567,340.70
  4. Step 4: Simplify right side
    19,872,012.80x = 464,031,590,478,541.38
  5. Step 5: Solve for x
    x = 464,031,590,478,541.38/19,872,012.80
  6. Step 6: Final answer
    x = 23,351,011.05

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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.