Home / 20,710,765.14-28,569,004.65-12,962,355.36

Finding the Fourth Proportional to 20,710,765.14, 28,569,004.65 and 12,962,355.36

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Solution

The fourth proportional to 20,710,765.14, 28,569,004.65 and 12,962,355.36 is: 17,880,633.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710,765.14 : 28,569,004.65 = 12,962,355.36 : x
  2. Step 2: Convert to fraction form
    20,710,765.14/28,569,004.65 = 12,962,355.36/x
  3. Step 3: Cross multiply
    20,710,765.14x = 28,569,004.65 × 12,962,355.36
  4. Step 4: Simplify right side
    20,710,765.14x = 370,321,590,554,792.38
  5. Step 5: Solve for x
    x = 370,321,590,554,792.38/20,710,765.14
  6. Step 6: Final answer
    x = 17,880,633.00

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1.5x scale

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.