Home / 28,699,360.61-43,028,856.32-13,330,332.72

Finding the Fourth Proportional to 28,699,360.61, 43,028,856.32 and 13,330,332.72

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Solution

The fourth proportional to 28,699,360.61, 43,028,856.32 and 13,330,332.72 is: 19,986,123.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699,360.61 : 43,028,856.32 = 13,330,332.72 : x
  2. Step 2: Convert to fraction form
    28,699,360.61/43,028,856.32 = 13,330,332.72/x
  3. Step 3: Cross multiply
    28,699,360.61x = 43,028,856.32 × 13,330,332.72
  4. Step 4: Simplify right side
    28,699,360.61x = 573,588,971,240,023.12
  5. Step 5: Solve for x
    x = 573,588,971,240,023.12/28,699,360.61
  6. Step 6: Final answer
    x = 19,986,123.70

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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.