Home / 13,457,330.75-18,570,879.45-7,655,988.83

Finding the Fourth Proportional to 13,457,330.75, 18,570,879.45 and 7,655,988.83

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Solution

The fourth proportional to 13,457,330.75, 18,570,879.45 and 7,655,988.83 is: 10,565,129.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457,330.75 : 18,570,879.45 = 7,655,988.83 : x
  2. Step 2: Convert to fraction form
    13,457,330.75/18,570,879.45 = 7,655,988.83/x
  3. Step 3: Cross multiply
    13,457,330.75x = 18,570,879.45 × 7,655,988.83
  4. Step 4: Simplify right side
    13,457,330.75x = 142,178,445,632,476.53
  5. Step 5: Solve for x
    x = 142,178,445,632,476.53/13,457,330.75
  6. Step 6: Final answer
    x = 10,565,129.76

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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.