Home / 30,559,411.44-42,172,009.56-16,809,421.68

Finding the Fourth Proportional to 30,559,411.44, 42,172,009.56 and 16,809,421.68

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Solution

The fourth proportional to 30,559,411.44, 42,172,009.56 and 16,809,421.68 is: 23,197,013.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,559,411.44 : 42,172,009.56 = 16,809,421.68 : x
  2. Step 2: Convert to fraction form
    30,559,411.44/42,172,009.56 = 16,809,421.68/x
  3. Step 3: Cross multiply
    30,559,411.44x = 42,172,009.56 × 16,809,421.68
  4. Step 4: Simplify right side
    30,559,411.44x = 708,887,091,787,031.25
  5. Step 5: Solve for x
    x = 708,887,091,787,031.25/30,559,411.44
  6. Step 6: Final answer
    x = 23,197,013.89

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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.