Home / 253,663,707.11-380,402,235.90-87,624,961.25

Finding the Fourth Proportional to 253,663,707.11, 380,402,235.90 and 87,624,961.25

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Solution

The fourth proportional to 253,663,707.11, 380,402,235.90 and 87,624,961.25 is: 131,405,203.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,663,707.11 : 380,402,235.90 = 87,624,961.25 : x
  2. Step 2: Convert to fraction form
    253,663,707.11/380,402,235.90 = 87,624,961.25/x
  3. Step 3: Cross multiply
    253,663,707.11x = 380,402,235.90 × 87,624,961.25
  4. Step 4: Simplify right side
    253,663,707.11x = 33,332,731,178,248,848
  5. Step 5: Solve for x
    x = 33,332,731,178,248,848/253,663,707.11
  6. Step 6: Final answer
    x = 131,405,203.99

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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.