Home / 20,928,303.48-28,881,068.67-12,108,956.97

Finding the Fourth Proportional to 20,928,303.48, 28,881,068.67 and 12,108,956.97

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Solution

The fourth proportional to 20,928,303.48, 28,881,068.67 and 12,108,956.97 is: 16,710,366.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,928,303.48 : 28,881,068.67 = 12,108,956.97 : x
  2. Step 2: Convert to fraction form
    20,928,303.48/28,881,068.67 = 12,108,956.97/x
  3. Step 3: Cross multiply
    20,928,303.48x = 28,881,068.67 × 12,108,956.97
  4. Step 4: Simplify right side
    20,928,303.48x = 349,719,617,772,645.19
  5. Step 5: Solve for x
    x = 349,719,617,772,645.19/20,928,303.48
  6. Step 6: Final answer
    x = 16,710,366.33

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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.