Home / 20,457,876.71-28,223,014.01-12,510,768.13

Finding the Fourth Proportional to 20,457,876.71, 28,223,014.01 and 12,510,768.13

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Solution

The fourth proportional to 20,457,876.71, 28,223,014.01 and 12,510,768.13 is: 17,259,444.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,457,876.71 : 28,223,014.01 = 12,510,768.13 : x
  2. Step 2: Convert to fraction form
    20,457,876.71/28,223,014.01 = 12,510,768.13/x
  3. Step 3: Cross multiply
    20,457,876.71x = 28,223,014.01 × 12,510,768.13
  4. Step 4: Simplify right side
    20,457,876.71x = 353,091,584,075,740.12
  5. Step 5: Solve for x
    x = 353,091,584,075,740.12/20,457,876.71
  6. Step 6: Final answer
    x = 17,259,444.32

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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.