Home / 15,401,355.64-21,255,051-8,786,089.60

Finding the Fourth Proportional to 15,401,355.64, 21,255,051 and 8,786,089.60

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Solution

The fourth proportional to 15,401,355.64, 21,255,051 and 8,786,089.60 is: 12,125,476.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401,355.64 : 21,255,051 = 8,786,089.60 : x
  2. Step 2: Convert to fraction form
    15,401,355.64/21,255,051 = 8,786,089.60/x
  3. Step 3: Cross multiply
    15,401,355.64x = 21,255,051 × 8,786,089.60
  4. Step 4: Simplify right side
    15,401,355.64x = 186,748,782,538,569.59
  5. Step 5: Solve for x
    x = 186,748,782,538,569.59/15,401,355.64
  6. Step 6: Final answer
    x = 12,125,476.93

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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.