Home / 65,677,664.08-90,620,139.90-39,210,866.92

Finding the Fourth Proportional to 65,677,664.08, 90,620,139.90 and 39,210,866.92

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Solution

The fourth proportional to 65,677,664.08, 90,620,139.90 and 39,210,866.92 is: 54,102,019.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,677,664.08 : 90,620,139.90 = 39,210,866.92 : x
  2. Step 2: Convert to fraction form
    65,677,664.08/90,620,139.90 = 39,210,866.92/x
  3. Step 3: Cross multiply
    65,677,664.08x = 90,620,139.90 × 39,210,866.92
  4. Step 4: Simplify right side
    65,677,664.08x = 3,553,294,245,890,682.50
  5. Step 5: Solve for x
    x = 3,553,294,245,890,682.50/65,677,664.08
  6. Step 6: Final answer
    x = 54,102,019.24

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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.