Home / 10,065,430.90-15,085,555.71-7,927,069.78

Finding the Fourth Proportional to 10,065,430.90, 15,085,555.71 and 7,927,069.78

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Solution

The fourth proportional to 10,065,430.90, 15,085,555.71 and 7,927,069.78 is: 11,880,688.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,065,430.90 : 15,085,555.71 = 7,927,069.78 : x
  2. Step 2: Convert to fraction form
    10,065,430.90/15,085,555.71 = 7,927,069.78/x
  3. Step 3: Cross multiply
    10,065,430.90x = 15,085,555.71 × 7,927,069.78
  4. Step 4: Simplify right side
    10,065,430.90x = 119,584,252,783,247.45
  5. Step 5: Solve for x
    x = 119,584,252,783,247.45/10,065,430.90
  6. Step 6: Final answer
    x = 11,880,688.86

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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.