Home / 19,778,740.92-29,614,956.48-12,551,143.32

Finding the Fourth Proportional to 19,778,740.92, 29,614,956.48 and 12,551,143.32

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Solution

The fourth proportional to 19,778,740.92, 29,614,956.48 and 12,551,143.32 is: 18,792,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778,740.92 : 29,614,956.48 = 12,551,143.32 : x
  2. Step 2: Convert to fraction form
    19,778,740.92/29,614,956.48 = 12,551,143.32/x
  3. Step 3: Cross multiply
    19,778,740.92x = 29,614,956.48 × 12,551,143.32
  4. Step 4: Simplify right side
    19,778,740.92x = 371,701,563,196,042.75
  5. Step 5: Solve for x
    x = 371,701,563,196,042.75/19,778,740.92
  6. Step 6: Final answer
    x = 18,792,984.08

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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.