Home / 12,768,040.60-19,152,060.90-9,912,693.40

Finding the Fourth Proportional to 12,768,040.60, 19,152,060.90 and 9,912,693.40

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Solution

The fourth proportional to 12,768,040.60, 19,152,060.90 and 9,912,693.40 is: 14,869,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,040.60 : 19,152,060.90 = 9,912,693.40 : x
  2. Step 2: Convert to fraction form
    12,768,040.60/19,152,060.90 = 9,912,693.40/x
  3. Step 3: Cross multiply
    12,768,040.60x = 19,152,060.90 × 9,912,693.40
  4. Step 4: Simplify right side
    12,768,040.60x = 189,848,507,679,828.06
  5. Step 5: Solve for x
    x = 189,848,507,679,828.06/12,768,040.60
  6. Step 6: Final answer
    x = 14,869,040.10

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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.