Home / 19,155,707.05-28,708,609.35-7,782,859.93

Finding the Fourth Proportional to 19,155,707.05, 28,708,609.35 and 7,782,859.93

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Solution

The fourth proportional to 19,155,707.05, 28,708,609.35 and 7,782,859.93 is: 11,664,152.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155,707.05 : 28,708,609.35 = 7,782,859.93 : x
  2. Step 2: Convert to fraction form
    19,155,707.05/28,708,609.35 = 7,782,859.93/x
  3. Step 3: Cross multiply
    19,155,707.05x = 28,708,609.35 × 7,782,859.93
  4. Step 4: Simplify right side
    19,155,707.05x = 223,435,085,356,138.34
  5. Step 5: Solve for x
    x = 223,435,085,356,138.34/19,155,707.05
  6. Step 6: Final answer
    x = 11,664,152.35

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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.