Home / 20,698,632.23-31,013,624.97-12,587,071.10

Finding the Fourth Proportional to 20,698,632.23, 31,013,624.97 and 12,587,071.10

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Solution

The fourth proportional to 20,698,632.23, 31,013,624.97 and 12,587,071.10 is: 18,859,734.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698,632.23 : 31,013,624.97 = 12,587,071.10 : x
  2. Step 2: Convert to fraction form
    20,698,632.23/31,013,624.97 = 12,587,071.10/x
  3. Step 3: Cross multiply
    20,698,632.23x = 31,013,624.97 × 12,587,071.10
  4. Step 4: Simplify right side
    20,698,632.23x = 390,370,702,411,057.25
  5. Step 5: Solve for x
    x = 390,370,702,411,057.25/20,698,632.23
  6. Step 6: Final answer
    x = 18,859,734.22

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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.