Home / 28,798,838.45-39,742,400.81-15,746,106.41

Finding the Fourth Proportional to 28,798,838.45, 39,742,400.81 and 15,746,106.41

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Solution

The fourth proportional to 28,798,838.45, 39,742,400.81 and 15,746,106.41 is: 21,729,628.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,798,838.45 : 39,742,400.81 = 15,746,106.41 : x
  2. Step 2: Convert to fraction form
    28,798,838.45/39,742,400.81 = 15,746,106.41/x
  3. Step 3: Cross multiply
    28,798,838.45x = 39,742,400.81 × 15,746,106.41
  4. Step 4: Simplify right side
    28,798,838.45x = 625,788,071,983,783.38
  5. Step 5: Solve for x
    x = 625,788,071,983,783.38/28,798,838.45
  6. Step 6: Final answer
    x = 21,729,628.89

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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.