Home / 20,590,222.08-28,402,701.04-12,841,812.30

Finding the Fourth Proportional to 20,590,222.08, 28,402,701.04 and 12,841,812.30

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Solution

The fourth proportional to 20,590,222.08, 28,402,701.04 and 12,841,812.30 is: 17,714,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590,222.08 : 28,402,701.04 = 12,841,812.30 : x
  2. Step 2: Convert to fraction form
    20,590,222.08/28,402,701.04 = 12,841,812.30/x
  3. Step 3: Cross multiply
    20,590,222.08x = 28,402,701.04 × 12,841,812.30
  4. Step 4: Simplify right side
    20,590,222.08x = 364,742,155,568,694.81
  5. Step 5: Solve for x
    x = 364,742,155,568,694.81/20,590,222.08
  6. Step 6: Final answer
    x = 17,714,338.10

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1.5x scale

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.