Home / 20,146,649.20-30,219,973.80-19,362,828.40

Finding the Fourth Proportional to 20,146,649.20, 30,219,973.80 and 19,362,828.40

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Solution

The fourth proportional to 20,146,649.20, 30,219,973.80 and 19,362,828.40 is: 29,044,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146,649.20 : 30,219,973.80 = 19,362,828.40 : x
  2. Step 2: Convert to fraction form
    20,146,649.20/30,219,973.80 = 19,362,828.40/x
  3. Step 3: Cross multiply
    20,146,649.20x = 30,219,973.80 × 19,362,828.40
  4. Step 4: Simplify right side
    20,146,649.20x = 585,144,166,941,895.88
  5. Step 5: Solve for x
    x = 585,144,166,941,895.88/20,146,649.20
  6. Step 6: Final answer
    x = 29,044,242.60

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1.5x scale

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.