Home / 20,117,790.16-30,176,389.56-4,971,721.68

Finding the Fourth Proportional to 20,117,790.16, 30,176,389.56 and 4,971,721.68

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Solution

The fourth proportional to 20,117,790.16, 30,176,389.56 and 4,971,721.68 is: 7,457,509.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117,790.16 : 30,176,389.56 = 4,971,721.68 : x
  2. Step 2: Convert to fraction form
    20,117,790.16/30,176,389.56 = 4,971,721.68/x
  3. Step 3: Cross multiply
    20,117,790.16x = 30,176,389.56 × 4,971,721.68
  4. Step 4: Simplify right side
    20,117,790.16x = 150,028,610,199,577.66
  5. Step 5: Solve for x
    x = 150,028,610,199,577.66/20,117,790.16
  6. Step 6: Final answer
    x = 7,457,509.45

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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.