Home / 25,879,969.20-38,819,953.80-19,908,001.20

Finding the Fourth Proportional to 25,879,969.20, 38,819,953.80 and 19,908,001.20

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Solution

The fourth proportional to 25,879,969.20, 38,819,953.80 and 19,908,001.20 is: 29,862,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,879,969.20 : 38,819,953.80 = 19,908,001.20 : x
  2. Step 2: Convert to fraction form
    25,879,969.20/38,819,953.80 = 19,908,001.20/x
  3. Step 3: Cross multiply
    25,879,969.20x = 38,819,953.80 × 19,908,001.20
  4. Step 4: Simplify right side
    25,879,969.20x = 772,827,686,834,344.50
  5. Step 5: Solve for x
    x = 772,827,686,834,344.50/25,879,969.20
  6. Step 6: Final answer
    x = 29,862,001.80

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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.