Home / 21,034,590.12-31,468,867.74-15,931,719.72

Finding the Fourth Proportional to 21,034,590.12, 31,468,867.74 and 15,931,719.72

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Solution

The fourth proportional to 21,034,590.12, 31,468,867.74 and 15,931,719.72 is: 23,834,701.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034,590.12 : 31,468,867.74 = 15,931,719.72 : x
  2. Step 2: Convert to fraction form
    21,034,590.12/31,468,867.74 = 15,931,719.72/x
  3. Step 3: Cross multiply
    21,034,590.12x = 31,468,867.74 × 15,931,719.72
  4. Step 4: Simplify right side
    21,034,590.12x = 501,353,180,739,429.81
  5. Step 5: Solve for x
    x = 501,353,180,739,429.81/21,034,590.12
  6. Step 6: Final answer
    x = 23,834,701.69

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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.