Home / 389,004,849.65-583,548,140.25-126,709,840.91

Finding the Fourth Proportional to 389,004,849.65, 583,548,140.25 and 126,709,840.91

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Solution

The fourth proportional to 389,004,849.65, 583,548,140.25 and 126,709,840.91 is: 190,078,072.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,004,849.65 : 583,548,140.25 = 126,709,840.91 : x
  2. Step 2: Convert to fraction form
    389,004,849.65/583,548,140.25 = 126,709,840.91/x
  3. Step 3: Cross multiply
    389,004,849.65x = 583,548,140.25 × 126,709,840.91
  4. Step 4: Simplify right side
    389,004,849.65x = 73,941,292,011,486,128
  5. Step 5: Solve for x
    x = 73,941,292,011,486,128/389,004,849.65
  6. Step 6: Final answer
    x = 190,078,072.49

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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.