Home / 12,890,528.98-17,788,574.97-7,089,312.83

Finding the Fourth Proportional to 12,890,528.98, 17,788,574.97 and 7,089,312.83

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Solution

The fourth proportional to 12,890,528.98, 17,788,574.97 and 7,089,312.83 is: 9,783,056.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890,528.98 : 17,788,574.97 = 7,089,312.83 : x
  2. Step 2: Convert to fraction form
    12,890,528.98/17,788,574.97 = 7,089,312.83/x
  3. Step 3: Cross multiply
    12,890,528.98x = 17,788,574.97 × 7,089,312.83
  4. Step 4: Simplify right side
    12,890,528.98x = 126,108,772,673,294.98
  5. Step 5: Solve for x
    x = 126,108,772,673,294.98/12,890,528.98
  6. Step 6: Final answer
    x = 9,783,056.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.