Home / 20,698,613.00-31,013,596.14-12,587,051.87

Finding the Fourth Proportional to 20,698,613.00, 31,013,596.14 and 12,587,051.87

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Solution

The fourth proportional to 20,698,613.00, 31,013,596.14 and 12,587,051.87 is: 18,859,705.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698,613.00 : 31,013,596.14 = 12,587,051.87 : x
  2. Step 2: Convert to fraction form
    20,698,613.00/31,013,596.14 = 12,587,051.87/x
  3. Step 3: Cross multiply
    20,698,613.00x = 31,013,596.14 × 12,587,051.87
  4. Step 4: Simplify right side
    20,698,613.00x = 390,369,743,134,343.81
  5. Step 5: Solve for x
    x = 390,369,743,134,343.81/20,698,613.00
  6. Step 6: Final answer
    x = 18,859,705.39

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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.