Home / 126,372,511.80-189,579,762.90-49,698,041.40

Finding the Fourth Proportional to 126,372,511.80, 189,579,762.90 and 49,698,041.40

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Solution

The fourth proportional to 126,372,511.80, 189,579,762.90 and 49,698,041.40 is: 74,555,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372,511.80 : 189,579,762.90 = 49,698,041.40 : x
  2. Step 2: Convert to fraction form
    126,372,511.80/189,579,762.90 = 49,698,041.40/x
  3. Step 3: Cross multiply
    126,372,511.80x = 189,579,762.90 × 49,698,041.40
  4. Step 4: Simplify right side
    126,372,511.80x = 9,421,742,905,206,384
  5. Step 5: Solve for x
    x = 9,421,742,905,206,384/126,372,511.80
  6. Step 6: Final answer
    x = 74,555,318.80

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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.