Home / 10,971,868.40-16,457,802.60-7,145,493.20

Finding the Fourth Proportional to 10,971,868.40, 16,457,802.60 and 7,145,493.20

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Solution

The fourth proportional to 10,971,868.40, 16,457,802.60 and 7,145,493.20 is: 10,718,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971,868.40 : 16,457,802.60 = 7,145,493.20 : x
  2. Step 2: Convert to fraction form
    10,971,868.40/16,457,802.60 = 7,145,493.20/x
  3. Step 3: Cross multiply
    10,971,868.40x = 16,457,802.60 × 7,145,493.20
  4. Step 4: Simplify right side
    10,971,868.40x = 117,599,116,565,242.33
  5. Step 5: Solve for x
    x = 117,599,116,565,242.33/10,971,868.40
  6. Step 6: Final answer
    x = 10,718,239.80

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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.