Home / 13,869,991.90-20,804,987.85-8,495,220.70

Finding the Fourth Proportional to 13,869,991.90, 20,804,987.85 and 8,495,220.70

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Solution

The fourth proportional to 13,869,991.90, 20,804,987.85 and 8,495,220.70 is: 12,742,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869,991.90 : 20,804,987.85 = 8,495,220.70 : x
  2. Step 2: Convert to fraction form
    13,869,991.90/20,804,987.85 = 8,495,220.70/x
  3. Step 3: Cross multiply
    13,869,991.90x = 20,804,987.85 × 8,495,220.70
  4. Step 4: Simplify right side
    13,869,991.90x = 176,742,963,446,568.50
  5. Step 5: Solve for x
    x = 176,742,963,446,568.50/13,869,991.90
  6. Step 6: Final answer
    x = 12,742,831.05

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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.