Home / 127,890,007.85-191,835,011.78-47,142,468.65

Finding the Fourth Proportional to 127,890,007.85, 191,835,011.78 and 47,142,468.65

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Solution

The fourth proportional to 127,890,007.85, 191,835,011.78 and 47,142,468.65 is: 70,713,702.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,890,007.85 : 191,835,011.78 = 47,142,468.65 : x
  2. Step 2: Convert to fraction form
    127,890,007.85/191,835,011.78 = 47,142,468.65/x
  3. Step 3: Cross multiply
    127,890,007.85x = 191,835,011.78 × 47,142,468.65
  4. Step 4: Simplify right side
    127,890,007.85x = 9,043,576,028,575,318
  5. Step 5: Solve for x
    x = 9,043,576,028,575,318/127,890,007.85
  6. Step 6: Final answer
    x = 70,713,702.98

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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.