Home / 14,985,349.25-20,679,781.72-8,109,831.32

Finding the Fourth Proportional to 14,985,349.25, 20,679,781.72 and 8,109,831.32

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Solution

The fourth proportional to 14,985,349.25, 20,679,781.72 and 8,109,831.32 is: 11,191,567.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985,349.25 : 20,679,781.72 = 8,109,831.32 : x
  2. Step 2: Convert to fraction form
    14,985,349.25/20,679,781.72 = 8,109,831.32/x
  3. Step 3: Cross multiply
    14,985,349.25x = 20,679,781.72 × 8,109,831.32
  4. Step 4: Simplify right side
    14,985,349.25x = 167,709,541,359,946
  5. Step 5: Solve for x
    x = 167,709,541,359,946/14,985,349.25
  6. Step 6: Final answer
    x = 11,191,567.08

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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.