Home / 21,919,399.65-30,249,265.05-14,197,881.78

Finding the Fourth Proportional to 21,919,399.65, 30,249,265.05 and 14,197,881.78

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Solution

The fourth proportional to 21,919,399.65, 30,249,265.05 and 14,197,881.78 is: 19,593,396.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919,399.65 : 30,249,265.05 = 14,197,881.78 : x
  2. Step 2: Convert to fraction form
    21,919,399.65/30,249,265.05 = 14,197,881.78/x
  3. Step 3: Cross multiply
    21,919,399.65x = 30,249,265.05 × 14,197,881.78
  4. Step 4: Simplify right side
    21,919,399.65x = 429,475,489,111,785.75
  5. Step 5: Solve for x
    x = 429,475,489,111,785.75/21,919,399.65
  6. Step 6: Final answer
    x = 19,593,396.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.