Home / 21,403,651.60-32,061,931.80-13,291,728.40

Finding the Fourth Proportional to 21,403,651.60, 32,061,931.80 and 13,291,728.40

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Solution

The fourth proportional to 21,403,651.60, 32,061,931.80 and 13,291,728.40 is: 19,910,550.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403,651.60 : 32,061,931.80 = 13,291,728.40 : x
  2. Step 2: Convert to fraction form
    21,403,651.60/32,061,931.80 = 13,291,728.40/x
  3. Step 3: Cross multiply
    21,403,651.60x = 32,061,931.80 × 13,291,728.40
  4. Step 4: Simplify right side
    21,403,651.60x = 426,158,489,464,923.12
  5. Step 5: Solve for x
    x = 426,158,489,464,923.12/21,403,651.60
  6. Step 6: Final answer
    x = 19,910,550.66

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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.