Home / 30,533,561.60-45,782,924.16-12,561,255.68

Finding the Fourth Proportional to 30,533,561.60, 45,782,924.16 and 12,561,255.68

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Solution

The fourth proportional to 30,533,561.60, 45,782,924.16 and 12,561,255.68 is: 18,834,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,533,561.60 : 45,782,924.16 = 12,561,255.68 : x
  2. Step 2: Convert to fraction form
    30,533,561.60/45,782,924.16 = 12,561,255.68/x
  3. Step 3: Cross multiply
    30,533,561.60x = 45,782,924.16 × 12,561,255.68
  4. Step 4: Simplify right side
    30,533,561.60x = 575,091,016,151,809.12
  5. Step 5: Solve for x
    x = 575,091,016,151,809.12/30,533,561.60
  6. Step 6: Final answer
    x = 18,834,717.80

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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.