Home / 20,863,867.08-28,791,707.58-11,569,937.40

Finding the Fourth Proportional to 20,863,867.08, 28,791,707.58 and 11,569,937.40

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Solution

The fourth proportional to 20,863,867.08, 28,791,707.58 and 11,569,937.40 is: 15,966,275.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,863,867.08 : 28,791,707.58 = 11,569,937.40 : x
  2. Step 2: Convert to fraction form
    20,863,867.08/28,791,707.58 = 11,569,937.40/x
  3. Step 3: Cross multiply
    20,863,867.08x = 28,791,707.58 × 11,569,937.40
  4. Step 4: Simplify right side
    20,863,867.08x = 333,118,254,339,705.50
  5. Step 5: Solve for x
    x = 333,118,254,339,705.50/20,863,867.08
  6. Step 6: Final answer
    x = 15,966,275.72

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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.