Home / 12,459,113.10-18,688,669.65-7,651,212.30

Finding the Fourth Proportional to 12,459,113.10, 18,688,669.65 and 7,651,212.30

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Solution

The fourth proportional to 12,459,113.10, 18,688,669.65 and 7,651,212.30 is: 11,476,818.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459,113.10 : 18,688,669.65 = 7,651,212.30 : x
  2. Step 2: Convert to fraction form
    12,459,113.10/18,688,669.65 = 7,651,212.30/x
  3. Step 3: Cross multiply
    12,459,113.10x = 18,688,669.65 × 7,651,212.30
  4. Step 4: Simplify right side
    12,459,113.10x = 142,990,979,096,716.69
  5. Step 5: Solve for x
    x = 142,990,979,096,716.69/12,459,113.10
  6. Step 6: Final answer
    x = 11,476,818.45

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Double scale
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Similar ratio
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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.