Home / 20,753,649.40-31,130,474.10-7,290,477.40

Finding the Fourth Proportional to 20,753,649.40, 31,130,474.10 and 7,290,477.40

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Solution

The fourth proportional to 20,753,649.40, 31,130,474.10 and 7,290,477.40 is: 10,935,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753,649.40 : 31,130,474.10 = 7,290,477.40 : x
  2. Step 2: Convert to fraction form
    20,753,649.40/31,130,474.10 = 7,290,477.40/x
  3. Step 3: Cross multiply
    20,753,649.40x = 31,130,474.10 × 7,290,477.40
  4. Step 4: Simplify right side
    20,753,649.40x = 226,956,017,877,335.38
  5. Step 5: Solve for x
    x = 226,956,017,877,335.38/20,753,649.40
  6. Step 6: Final answer
    x = 10,935,716.10

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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.