Home / 4,786,038.72-7,180,457.76-1,420,333.20

Finding the Fourth Proportional to 4,786,038.72, 7,180,457.76 and 1,420,333.20

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Solution

The fourth proportional to 4,786,038.72, 7,180,457.76 and 1,420,333.20 is: 2,130,915.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,786,038.72 : 7,180,457.76 = 1,420,333.20 : x
  2. Step 2: Convert to fraction form
    4,786,038.72/7,180,457.76 = 1,420,333.20/x
  3. Step 3: Cross multiply
    4,786,038.72x = 7,180,457.76 × 1,420,333.20
  4. Step 4: Simplify right side
    4,786,038.72x = 10,198,642,547,725.63
  5. Step 5: Solve for x
    x = 10,198,642,547,725.63/4,786,038.72
  6. Step 6: Final answer
    x = 2,130,915.18

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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.