Home / 215,939,133.63-323,931,507.21-70,384,086.74

Finding the Fourth Proportional to 215,939,133.63, 323,931,507.21 and 70,384,086.74

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Solution

The fourth proportional to 215,939,133.63, 323,931,507.21 and 70,384,086.74 is: 105,583,563.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,939,133.63 : 323,931,507.21 = 70,384,086.74 : x
  2. Step 2: Convert to fraction form
    215,939,133.63/323,931,507.21 = 70,384,086.74/x
  3. Step 3: Cross multiply
    215,939,133.63x = 323,931,507.21 × 70,384,086.74
  4. Step 4: Simplify right side
    215,939,133.63x = 22,799,623,302,097,404
  5. Step 5: Solve for x
    x = 22,799,623,302,097,404/215,939,133.63
  6. Step 6: Final answer
    x = 105,583,563.84

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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.