Home / 12,270,345.03-16,942,089.74-7,921,971.27

Finding the Fourth Proportional to 12,270,345.03, 16,942,089.74 and 7,921,971.27

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Solution

The fourth proportional to 12,270,345.03, 16,942,089.74 and 7,921,971.27 is: 10,938,139.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270,345.03 : 16,942,089.74 = 7,921,971.27 : x
  2. Step 2: Convert to fraction form
    12,270,345.03/16,942,089.74 = 7,921,971.27/x
  3. Step 3: Cross multiply
    12,270,345.03x = 16,942,089.74 × 7,921,971.27
  4. Step 4: Simplify right side
    12,270,345.03x = 134,214,748,134,431.91
  5. Step 5: Solve for x
    x = 134,214,748,134,431.91/12,270,345.03
  6. Step 6: Final answer
    x = 10,938,139.70

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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.