Home / 18,697,066.40-28,038,601.20-6,561,840.80

Finding the Fourth Proportional to 18,697,066.40, 28,038,601.20 and 6,561,840.80

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Solution

The fourth proportional to 18,697,066.40, 28,038,601.20 and 6,561,840.80 is: 9,840,305.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,697,066.40 : 28,038,601.20 = 6,561,840.80 : x
  2. Step 2: Convert to fraction form
    18,697,066.40/28,038,601.20 = 6,561,840.80/x
  3. Step 3: Cross multiply
    18,697,066.40x = 28,038,601.20 × 6,561,840.80
  4. Step 4: Simplify right side
    18,697,066.40x = 183,984,837,329,088.94
  5. Step 5: Solve for x
    x = 183,984,837,329,088.94/18,697,066.40
  6. Step 6: Final answer
    x = 9,840,305.07

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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.