Home / 315,219,659.70-472,829,489.55-194,287,307.70

Finding the Fourth Proportional to 315,219,659.70, 472,829,489.55 and 194,287,307.70

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Solution

The fourth proportional to 315,219,659.70, 472,829,489.55 and 194,287,307.70 is: 291,430,961.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,219,659.70 : 472,829,489.55 = 194,287,307.70 : x
  2. Step 2: Convert to fraction form
    315,219,659.70/472,829,489.55 = 194,287,307.70/x
  3. Step 3: Cross multiply
    315,219,659.70x = 472,829,489.55 × 194,287,307.70
  4. Step 4: Simplify right side
    315,219,659.70x = 91,864,768,525,834,784
  5. Step 5: Solve for x
    x = 91,864,768,525,834,784/315,219,659.70
  6. Step 6: Final answer
    x = 291,430,961.55

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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.