Home / 13,710,980.51-18,920,882.57-7,516,040.57

Finding the Fourth Proportional to 13,710,980.51, 18,920,882.57 and 7,516,040.57

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Solution

The fourth proportional to 13,710,980.51, 18,920,882.57 and 7,516,040.57 is: 10,371,987.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,710,980.51 : 18,920,882.57 = 7,516,040.57 : x
  2. Step 2: Convert to fraction form
    13,710,980.51/18,920,882.57 = 7,516,040.57/x
  3. Step 3: Cross multiply
    13,710,980.51x = 18,920,882.57 × 7,516,040.57
  4. Step 4: Simplify right side
    13,710,980.51x = 142,210,120,884,141.28
  5. Step 5: Solve for x
    x = 142,210,120,884,141.28/13,710,980.51
  6. Step 6: Final answer
    x = 10,371,987.68

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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.